Which BMW X6 Is the Best in Australia? Complete 2026 Buying Guide

Choosing the best BMW X6 in Australia isn't simply a matter of buying the most expensive version. With several engines, different performance levels and substantial differences in running costs, finding the right X6 depends on how you plan to use it.

Some drivers want a comfortable luxury SUV for everyday commuting, while others prioritise highway efficiency, powerful acceleration or the unmistakable sound of a twin-turbo V8.

The BMW X6 combines the practicality of an SUV with the sporty styling of a coupé. However, not every version delivers the same ownership experience.

So, which BMW X6 is the best in Australia?

For most Australian buyers, we consider the BMW X6 xDrive40i M Sport the best overall choice. Its turbocharged six-cylinder petrol engine delivers excellent performance, smooth acceleration and a more balanced ownership experience than the expensive V8 models.

However, the BMW X6 xDrive30d is arguably the better purchase for drivers covering long distances, thanks to its excellent diesel efficiency and substantial torque.

Meanwhile, the M60i is our favourite for drivers seeking serious performance without committing to the uncompromising character of the X6 M Competition.

Let's compare the available models, examine their engines and running costs, and determine which BMW X6 makes the most sense in Australia.

BMW X6 Models Available in Australia in 2026

The Australian BMW X6 range offers four principal versions, including the high-performance X6 M Competition.

Although they share a similar appearance and luxury SUV platform, their personalities are noticeably different.

BMW X6 Australia: Engine and Performance Comparison

Figures are based on current Australian specifications. Power figures include mild-hybrid assistance where applicable. Fuel consumption is based on official combined-cycle testing, and real-world results will vary.

Every version features an eight-speed automatic transmission and BMW's all-wheel-drive technology.

The differences become particularly interesting when we consider how each vehicle performs in Australian driving conditions.

1. BMW X6 xDrive40i M Sport: Best Overall BMW X6 in Australia

The BMW X6 xDrive40i M Sport earns our recommendation as the best all-round version for most Australian buyers.

Its greatest advantage is balance.

Rather than pursuing maximum performance or minimum fuel consumption, the xDrive40i combines a refined six-cylinder engine with strong acceleration, modern technology and impressive everyday comfort.

Engine Performance

The xDrive40i uses BMW's 3.0-litre turbocharged inline-six petrol engine, supported by 48-volt mild-hybrid technology.

Key specifications include:

• Engine: 3.0-litre turbocharged inline-six petrol
• Maximum combined power: 280 kW
• Maximum torque: 540 Nm
• Transmission: Eight-speed automatic
• Drivetrain: xDrive all-wheel drive
• Acceleration: 0–100 km/h in 5.4 seconds
• Combined fuel consumption: 9.3 L/100 km

For a large luxury SUV weighing more than two tonnes, those performance figures are impressive.

Acceleration feels strong and progressive, particularly when overtaking or merging onto busy motorways.

The eight-speed automatic transmission is another highlight. It shifts smoothly during relaxed driving while responding quickly when additional performance is required.

Why We Recommend the xDrive40i

One of the biggest attractions of this version is its engine character.

BMW's turbocharged straight-six petrol engine is known for smooth power delivery, making it particularly suitable for premium vehicles.

Unlike the diesel, the petrol engine provides a quieter and more refined experience during short urban journeys.

It also avoids certain diesel-specific maintenance considerations associated with emissions equipment and diesel particulate filters.

The xDrive40i is especially appealing to drivers who regularly travel through cities such as Sydney, Melbourne, Brisbane or Perth.

It offers more than enough performance for Australian roads without the additional purchase and ownership expenses associated with the V8-powered models.

Are There Any Disadvantages?

Fuel consumption is the most obvious drawback.

Official combined fuel use is 9.3 L/100 km, but congested urban driving can produce considerably higher figures.

The xDrive40i also requires premium petrol, increasing running costs compared with a more economical family SUV.

Nevertheless, when we consider performance, refinement and daily usability, this remains our preferred BMW X6 for most buyers.

Our verdict: Best BMW X6 for everyday driving, comfort and balanced performance.

2. BMW X6 xDrive30d M Sport: Best for Fuel Economy and Long-Distance Driving

If fuel efficiency matters more than outright acceleration, the BMW X6 xDrive30d could be the smartest choice in the entire range.

In fact, Australian drivers covering substantial distances may find it more suitable than the petrol xDrive40i.

The xDrive30d combines a powerful turbocharged diesel engine with excellent cruising ability.

Engine and Performance

The current model features a 3.0-litre six-cylinder turbo diesel with mild-hybrid assistance.

Specifications include:

• Engine: 3.0-litre turbocharged six-cylinder diesel
• Maximum combined power: 219 kW
• Maximum torque: 670 Nm
• Transmission: Eight-speed automatic
• Acceleration: 0–100 km/h in 6.1 seconds
• Combined fuel consumption: 7.7 L/100 km

Although its acceleration is slightly slower than the petrol xDrive40i, the diesel delivers substantial low-speed pulling power.

This makes it particularly enjoyable during highway cruising, overtaking and travelling with additional passengers or luggage.

Why the xDrive30d Makes Sense in Australia

Australia has vast distances between major cities, making diesel efficiency especially attractive.

For example, someone regularly driving between Melbourne and Sydney, Brisbane and the Gold Coast, or across regional Queensland could benefit from the xDrive30d's lower fuel consumption.

Its official combined figure of 7.7 L/100 km is significantly better than the petrol alternatives.

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The diesel's strong torque also makes it an attractive choice for towing, provided the vehicle is correctly equipped and all relevant weight limits are respected.

Potential Disadvantages

Diesel engines are not necessarily the best option for every driver.

Owners who primarily complete short journeys in heavy traffic may encounter additional complications associated with diesel particulate filter regeneration.

Modern diesel vehicles also have emissions-control systems that can become expensive to repair outside the warranty period.

For these reasons, we would generally favour the xDrive40i for predominantly short urban trips.

However, for drivers covering 20,000 kilometres or more annually, particularly on highways, the xDrive30d deserves serious consideration.

Our verdict: Best BMW X6 for highway driving, fuel efficiency and high annual mileage.

3. BMW X6 M60i: Best for Luxury Performance

The BMW X6 M60i sits in an interesting position.

It delivers much of the excitement associated with BMW's high-performance M vehicles while maintaining a more comfortable personality for daily driving.

For buyers who love powerful engines, the M60i is arguably the most desirable model in the standard X6 range.

Engine Specifications

The M60i features a 4.4-litre twin-turbocharged petrol V8.

Its performance figures include:

• Engine: 4.4-litre twin-turbocharged V8 petrol
• Maximum power: 390 kW
• Maximum torque: 750 Nm
• Acceleration: 0–100 km/h in 4.3 seconds
• Combined fuel consumption: 11.9 L/100 km
• Transmission: Eight-speed automatic

These figures place the M60i firmly in high-performance SUV territory.

Despite its considerable weight, acceleration is extremely strong.

The V8 produces effortless power, whether accelerating from a standstill or overtaking at highway speeds.

What Makes the M60i Special?

The M60i offers more than additional horsepower.

Compared with the six-cylinder models, it brings a more performance-oriented driving experience.

Depending on the vehicle's specification, highlights include upgraded performance equipment, M-specific styling and enhanced chassis technology.

The V8 engine also produces a more distinctive exhaust note, something that enthusiasts may consider an important part of the ownership experience.

Yet the M60i remains suitable for everyday use.

It is less aggressively focused than the X6 M Competition, making it an appealing middle ground between comfort and extreme performance.

Is the BMW X6 M60i Worth the Extra Money?

That depends on your priorities.

From a purely practical perspective, the xDrive40i already delivers more performance than most drivers will ever need.

The M60i also comes with higher fuel consumption, a greater purchase price and potentially more expensive tyres, brakes and maintenance.

However, someone purchasing an X6 primarily for driving enjoyment may consider those compromises worthwhile.

Our verdict: Best BMW X6 for buyers who want V8 performance without choosing the full X6 M Competition.

4. BMW X6 M Competition: Best for Maximum Performance

At the top of the range sits the BMW X6 M Competition.

This is not simply a more powerful X6. It is a dedicated high-performance vehicle engineered by BMW M.

Its suspension, drivetrain, braking system and handling characteristics are designed to deliver an experience closer to a performance car than a conventional family SUV.

Performance Specifications

The X6 M Competition features:

• Engine: 4.4-litre twin-turbocharged V8 petrol
• Maximum power: 460 kW
• Maximum torque: 750 Nm
• Acceleration: 0–100 km/h in 3.9 seconds
• Combined fuel consumption: 12.5 L/100 km
• M-specific eight-speed automatic transmission
• M xDrive all-wheel drive

With 460 kW available, the X6 M Competition is extraordinarily fast for a vehicle of its size.

Its sophisticated suspension and all-wheel-drive system allow it to maintain impressive control during enthusiastic driving.

Why It Isn't Our Overall Winner

Although the X6 M Competition is the fastest version, maximum performance does not automatically make it the best choice.

Its suspension setup is firmer, operating expenses are higher and its full capabilities are difficult to exploit on public roads.

Tyres and brakes can also be particularly expensive to replace.

For someone who spends most of their time commuting, the extra performance may offer little practical benefit.

We would reserve the X6 M Competition for enthusiasts who genuinely appreciate high-performance engineering and are comfortable with the associated costs.

Our verdict: Best BMW X6 for maximum acceleration and enthusiast-focused driving.

BMW X6 Prices in Australia: Which Model Offers the Best Value?

Price is another important consideration when comparing the BMW X6 range.

The difference between the entry-level diesel and the flagship X6 M Competition is substantial.

Indicative 2026 BMW X6 Australian Prices

These are indicative 2026 Australian prices before on-road costs, based on published vehicle price guides. They are not guaranteed dealer quotes. State-based charges, options and discounts can affect the final price.

The xDrive30d and xDrive40i are particularly interesting because their indicative starting prices differ by only $4,000.

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That relatively small difference means buyers can choose primarily based on engine preference rather than affordability.

The M60i demands approximately $34,000 more than the xDrive40i.

For that additional expense, buyers receive a powerful V8 and enhanced performance credentials.

However, the six-cylinder models already deliver a premium cabin, distinctive styling and many of the luxury features buyers expect from an X6.

For this reason, we believe the xDrive40i and xDrive30d provide the strongest value propositions.

Which BMW X6 Engine Is the Most Reliable?

Reliability is particularly important when purchasing an expensive European luxury SUV.

The BMW X6 has used several different engines throughout its production history, including turbocharged petrol six-cylinders, turbo diesel six-cylinders and high-performance V8 engines.

Although maintenance history is crucial, some engine configurations are generally more attractive for long-term ownership.

BMW 3.0-Litre Petrol Six-Cylinder

The modern BMW turbocharged inline-six petrol engine is one of the strongest reasons to choose the xDrive40i.

The B58 engine family has developed a generally favourable reputation for performance, smoothness and durability when properly maintained.

However, that does not mean repairs are inexpensive or failures never occur.

Owners should still pay attention to:

• Cooling-system components
• Oil and coolant leaks
• Ignition-system condition
• Turbocharger operation
• Service history
• Signs of overheating

For buyers who want a petrol-powered X6 without the greater complexity of a V8, the xDrive40i is a sensible choice.

BMW 3.0-Litre Diesel Six-Cylinder

BMW's six-cylinder turbo diesel engines can also be excellent long-distance powertrains.

Their strong torque and efficient highway performance make them particularly appropriate for Australian conditions.

However, emissions equipment deserves attention.

Potential concerns on used examples include diesel particulate filters, exhaust gas recirculation systems and associated sensors.

Regular highway use and correct servicing are important.

BMW Twin-Turbo V8 Engines

The V8 engines used across different generations of the X6 deliver outstanding performance.

However, they are generally more complicated and expensive to maintain than the six-cylinder alternatives.

Older examples, especially those fitted with early versions of BMW's N63 V8, warrant careful inspection because of known historical concerns involving oil consumption, cooling and other engine-related components.

Later V8 engines have undergone substantial development, but they still carry significant potential repair costs.

Our reliability preference: A properly maintained modern six-cylinder X6, particularly the xDrive40i, is our preferred starting point for buyers focused on balancing performance and long-term ownership costs.

That is a purchasing recommendation, not a guarantee that every six-cylinder example will be more reliable than every V8.

What Is the Best Used BMW X6 to Buy in Australia?

Not everyone wants to spend more than $140,000 on a new luxury SUV.

Fortunately, the Australian used-car market offers several generations of the BMW X6 at considerably lower prices.

However, selecting the right generation is essential.

Best Modern Used BMW X6: 2021–2022 G06

For buyers seeking a relatively modern vehicle at a more affordable price, we recommend investigating the 2021–2022 third-generation BMW X6.

These vehicles offer significant improvements over older generations, including:

• Contemporary interior technology
• Improved cabin refinement
• Modern driver assistance systems
• Strong six-cylinder engine options
• Comfortable highway performance
• Improved infotainment functionality compared with older models

The G06 generation was introduced in 2019, with an updated version arriving for the 2024 model year.

A well-maintained 2021 or 2022 example can therefore represent an interesting compromise between modern luxury and depreciation.

We would prioritise the xDrive30d or xDrive40i over a high-mileage V8, unless the buyer specifically wants performance and has budgeted for the additional maintenance risk.

Best Older Used BMW X6: 2016–2018 xDrive30d

For buyers working with a smaller budget, the second-generation F16 X6 deserves consideration.

We particularly like the 2016–2018 xDrive30d.

Its six-cylinder turbo diesel provides strong low-speed performance and relatively economical highway consumption.

However, age-related maintenance becomes a much more important issue.

Potential expenses include suspension repairs, cooling-system components, oil leaks, electronics and diesel emissions equipment.

A cheaper purchase price should never be confused with low ownership costs.

Which BMW X6 Years Should You Avoid?

We would not automatically reject every X6 from a particular model year.

Instead, we recommend being especially cautious with:

• Older V8 models lacking comprehensive maintenance records
• Vehicles with unresolved overheating or oil-consumption problems
• High-kilometre diesels used mainly for short urban journeys
• Heavily modified performance models
• Examples with irregular servicing
• Vehicles showing signs of accident damage or neglected suspension components

A carefully maintained older BMW X6 can be a better purchase than a newer example with a poor ownership history.

Before buying, arrange an independent pre-purchase inspection by a mechanic familiar with BMW vehicles.

BMW X6 Gas Type Australia: Which Fuel Should You Use?

BMW X6 Petrol vs Diesel: Which Is Better for Australian Roads?

The petrol-versus-diesel decision is particularly relevant because both six-cylinder models offer strong performance.

The better option depends largely on your driving habits.

Choose the xDrive30d If You:

• Regularly travel long distances
• Drive predominantly on highways
• Cover substantial annual kilometres
• Want lower fuel consumption
• Appreciate strong low-speed torque
• Occasionally tow a trailer or caravan within the vehicle's rated limits

Choose the xDrive40i If You:

• Mainly drive around Australian cities
• Complete frequent short journeys
• Prefer a quieter petrol engine
• Want quicker acceleration
• Value smooth engine response
• Do not accumulate especially high annual mileage

For drivers who split their time between city and highway use, both are excellent choices.

However, we would generally recommend the petrol xDrive40i for relatively low annual mileage and the diesel xDrive30d for frequent long-distance travel.

BMW X6 Fuel Consumption: Real-World Running Costs

Fuel consumption becomes an important factor when comparing vehicles with six-cylinder and V8 engines.

To understand the difference, let's calculate the annual fuel required when travelling 15,000 kilometres.

Estimated Annual Fuel Consumption

These calculations use official combined-cycle figures rather than measured real-world consumption.

Actual fuel use depends on traffic, driving style, climate, tyres, vehicle load and road conditions.

How Much Fuel Can the Diesel Save?

At 15,000 kilometres annually, the xDrive30d uses approximately 240 fewer litres than the xDrive40i based on official figures.

Compared with the M60i, that difference increases to approximately 630 litres.

However, fuel cost savings depend on local diesel and premium petrol prices.

Drivers should also consider that the diesel may face different maintenance expenses, particularly as the vehicle ages.

Fuel consumption alone should not determine which engine is best.

Is the BMW X6 Comfortable for Australian Families?

Although the X6 looks sportier than a conventional SUV, it still offers considerable interior space.

The current model features five seats and a spacious, premium cabin.

Most versions provide approximately 580 litres of luggage capacity with the rear seats upright.

Folding the rear seats increases cargo space to around 1,530 litres.

That is sufficient for shopping, luggage and many everyday family requirements.

However, the sloping roofline creates some limitations.

Main Practicality Disadvantages

The X6 has several compromises compared with the more traditional BMW X5.

These include:

• Reduced rear headroom compared with a conventional SUV
• Less accommodating cargo shape for tall objects
• Restricted rearward visibility
• A high purchase price
• Large exterior dimensions that complicate parking

The X6 is approximately 4.96 metres long and more than two metres wide without mirrors, depending on the variant.

That makes it a substantial vehicle for narrow city streets and shopping-centre parking spaces.

If maximum practicality is your priority, the BMW X5 may be a more logical choice.

However, buyers attracted to the X6's distinctive design may consider these compromises perfectly acceptable.

BMW X6 vs BMW X5: Which Is the Better Purchase?

This is an important comparison because both vehicles share many mechanical components and technologies.

The primary difference concerns their design and practicality.

The X6 is generally the more distinctive vehicle.

Its sloping roofline and aggressive appearance help it stand out from other luxury SUVs.

However, the X5 offers a more conventional body shape, making it better suited to families who frequently carry bulky luggage or taller passengers.

We would choose the X6 for style and the X5 for practicality.

Is the BMW X6 Expensive to Maintain in Australia?

Yes. The BMW X6 is a premium European SUV, and owners should expect maintenance expenses to reflect its original purchase price and mechanical complexity.

Even when buying a used X6 at a substantial discount, servicing and replacement parts can remain expensive.

Common Ownership Expenses

The biggest costs to consider include:

Tyres: Large performance-oriented tyres can be expensive, especially on vehicles fitted with optional oversized wheels.

Brakes: The weight and performance of the X6 mean brake components may cost considerably more than those on smaller vehicles.

Insurance: Comprehensive insurance premiums can be significant, particularly for the M60i and X6 M Competition.

Scheduled maintenance: Oil changes, filters, brake fluid and other routine services need to follow BMW's maintenance requirements.

Suspension: Adaptive suspension components and associated repairs may be costly outside warranty.

Depreciation: Luxury performance SUVs can experience substantial depreciation, especially during their earlier years.

BMW Warranty in Australia

New BMW vehicles in Australia are generally covered by a five-year, unlimited-kilometre manufacturer's warranty, subject to the relevant warranty conditions.

BMW also offers Service Inclusive packages for eligible vehicles.

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For example, the published five-year/80,000-kilometre Service Inclusive Basic package for the X5 and X6 is approximately $3,570, subject to package eligibility and pricing changes.

This can help buyers budget for scheduled maintenance, although wear items and other excluded repairs may still result in additional expenses.

When buying used, we recommend confirming any remaining manufacturer warranty and checking whether a servicing package is transferable.

Which BMW X6 Has the Best Resale Value in Australia?

Resale value depends on more than engine choice.

Mileage, condition, service records, colour, equipment and overall market demand can all influence depreciation.

Nevertheless, the six-cylinder models may appeal to a broader range of buyers because of their more manageable running costs.

Why the xDrive30d and xDrive40i Are Attractive

These variants offer much of the styling, technology and luxury associated with the X6 without the higher ownership expenses of the V8 alternatives.

That can make them appealing in the second-hand market.

The diesel may attract high-mileage drivers, while the petrol xDrive40i is likely to appeal to buyers seeking refinement and performance.

What About the M60i and X6 M Competition?

Performance enthusiasts may be willing to pay a premium for desirable V8 models.

However, the pool of potential buyers can be smaller because of higher insurance, fuel and maintenance expenses.

High original purchase prices can also translate into substantial depreciation in dollar terms.

For this reason, we would not automatically assume that the most expensive X6 will retain its value best.

A well-maintained six-cylinder vehicle purchased at the right price may offer a more predictable ownership proposition.

Which BMW X6 Should You Buy? Our Recommendations

After comparing the different versions, we can make a recommendation based on the type of driver.

For most people, the decision should come down to two models: the xDrive30d and xDrive40i.

Both provide strong performance, modern technology and the distinctive design that makes the X6 attractive.

The more expensive V8 alternatives are excellent vehicles, but they make the most sense for buyers who specifically want their additional performance.

What Should You Check Before Buying a BMW X6 in Australia?

Before purchasing either a new or used BMW X6, we recommend reviewing several important factors.

1. Check the Service History

A complete service history is particularly important for used examples.

Look for consistent maintenance records, correct fluids and evidence that required repairs have been completed.

2. Inspect the Suspension

The X6 is a heavy SUV with sophisticated suspension technology.

Listen for unusual noises and check for uneven tyre wear or signs of worn suspension components.

3. Test the Transmission

BMW's eight-speed automatic transmission should operate smoothly.

Harsh shifting, unusual hesitation or warning messages deserve further investigation.

4. Examine the Engine and Cooling System

Inspect for coolant leaks, oil leaks, unusual noises and signs of overheating.

For diesel versions, also consider the condition of emissions-control equipment.

5. Obtain an Insurance Quote

Insurance premiums can vary significantly depending on the model, driver profile and location.

We recommend requesting an insurance quote before committing to the purchase.

6. Compare Tyre and Brake Replacement Costs

A vehicle fitted with larger wheels and performance brakes can cost significantly more to maintain.

These expenses are particularly important when comparing six-cylinder models with the M60i or X6 M Competition.

Frequently Asked Questions About the Best BMW X6 in Australia

1. Which BMW X6 is the best model to buy in Australia?

We recommend the BMW X6 xDrive40i M Sport as the best overall model for most Australian drivers. Its 3.0-litre turbocharged petrol engine offers excellent acceleration, smooth operation and a more balanced ownership experience than the expensive V8 versions. However, the xDrive30d is better suited to buyers who regularly cover long distances.

2. Which BMW X6 engine is the most reliable?

A well-maintained BMW X6 with a modern 3.0-litre six-cylinder engine is generally an attractive choice for buyers concerned about reliability and ownership expenses. The B58 petrol engine family has a favourable reputation, while BMW's six-cylinder diesels can perform well during long-distance use. Actual reliability depends heavily on servicing, driving conditions and vehicle history.

3. Is the BMW X6 xDrive30d better than the xDrive40i?

The xDrive30d is better for fuel economy, highway driving and drivers covering substantial annual distances. The xDrive40i offers quicker acceleration, smoother petrol-engine characteristics and greater suitability for predominantly urban driving. Neither is universally superior; the right choice depends on how the vehicle will be used.

4. What is the best used BMW X6 to buy in Australia?

We recommend considering a 2021–2022 BMW X6 G06 with a six-cylinder engine. These models provide modern luxury, strong performance and contemporary technology without the full purchase price of a new vehicle. Buyers with smaller budgets may also consider a well-maintained 2016–2018 xDrive30d, provided it passes a comprehensive mechanical inspection.

5. Is the BMW X6 worth buying in Australia?

The BMW X6 is worth considering if you value distinctive styling, powerful engines, premium interior quality and refined highway performance. However, it is expensive to purchase and maintain, and the sloping roofline reduces practicality compared with the BMW X5. For buyers who prioritise design and driving enjoyment over maximum interior space, the X6 remains an appealing luxury SUV.

Final Verdict: Which BMW X6 Is the Best in Australia?

After comparing the engines, performance, fuel consumption, pricing and ownership considerations, our overall recommendation is the BMW X6 xDrive40i M Sport.

It offers the combination we believe matters most to Australian luxury SUV buyers: smooth performance, a refined six-cylinder engine, excellent acceleration and everyday comfort.

With 280 kW and a 0–100 km/h time of 5.4 seconds, it delivers genuinely impressive performance without requiring the substantial additional investment associated with a V8 model.

However, the xDrive30d deserves equal attention from drivers who regularly travel long distances. Its 7.7 L/100 km official fuel consumption and substantial torque make it an excellent highway companion.

The M60i is our favourite for buyers who specifically want V8 performance, while the X6 M Competition remains the ultimate choice for enthusiasts seeking maximum acceleration.

For used-car buyers, we would concentrate on well-maintained six-cylinder examples from the G06 generation, particularly those produced in 2021 and 2022.

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Ultimately, the best BMW X6 in Australia is not necessarily the fastest or most expensive version. It is the model that delivers the right balance of performance, comfort, reliability and running costs for your driving habits.

For most buyers, that model is the xDrive40i M Sport.