2025 BMW X6 M vs 2026 Audi RS Q8

$132,100 · Crossover

$138,300 · Crossover

Comparison Overview

Choosing between two high-performance German crossovers, the 2025 BMW X6 M ($132,100) and the 2026 Audi RS Q8 ($138,300), often boils down to prioritizing sheer power versus practical space. The Audi holds a slight edge in the spec sheet, boasting 631 hp and a substantial 627 lb-ft of torque, compared to the BMW’s 617 hp and 553 lb-ft. This performance gap is reflected in fuel economy, where the RS Q8 nets a slightly better 16 MPG combined versus the X6 M's 15 MPG combined, using premium unleaded in both cases. However, the BMW is $6,200 cheaper upfront. In terms of utility, the RS Q8 clearly wins with 33 cu ft of cargo space, leaving the X6 M significantly behind at only 27.4 cu ft. Size-wise, both are substantial, with the Audi being slightly longer at 197.7 inches compared to the X6 M's 195.0 inches.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Audi RS Q8

The Audi RS Q8 offers slightly better fuel efficiency at 16 MPG combined, which saves marginally on fuel costs over long daily drives.

👨‍👩‍👧‍👦 Best for Families

2026 Audi RS Q8

The 2026 Audi RS Q8 is the better choice for families due to its significantly larger 33 cu ft cargo capacity compared to the X6 M's 27.4 cu ft.

🏎️ Best for Enthusiasts

2026 Audi RS Q8

Enthusiasts will favor the 2026 Audi RS Q8 for its higher output of 631 horsepower and 627 lb-ft of torque.

💰 Best Value

2025 BMW X6 M

The 2025 BMW X6 M provides an extremely similar performance profile while saving the buyer $6,200 in initial purchase price.

Choose the BMW X6 M if...

You want to save $6,200 instantly, as the BMW X6 M has an MSRP of $132,100 versus $138,300 for the Audi.
You prefer a marginally smaller exterior footprint, with the X6 M measuring 195.0 inches long compared to the RS Q8’s 197.7 inches.
You are satisfied with 617 horsepower, which is ample power for daily driving and spirited maneuvers.

Choose the Audi RS Q8 if...

Maximum utility is a must, as the RS Q8 offers 33 cu ft of cargo space, significantly more than the X6 M’s 27.4 cu ft.
You desire the most power available, as the 2026 RS Q8 leads with 631 hp and 627 lb-ft of torque.
You commute frequently, as the Audi's 20 MPG highway rating narrowly beats the BMW's 18 MPG highway rating.

Key Dimensions

Dimension	BMW X6 M	Audi RS Q8
Length	195.0"	197.7"
Width	79.5"	79.0"
Height	66.7"	67.5"
Wheelbase	117.0"	117.9"

Features Comparison

Safety

Feature	BMW	Audi
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	✓
Rear Cross Traffic Alert	✓	✓
Driver Attention Alert	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Brake Drying	✓	—
Front Ventilated Disc Brakes	✓	—
Rear Ventilated Disc Brakes	✓	—
Brake Preparation System	✓	—
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Self-Leveling Headlights	✓	—
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Power Adjustable Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Lane Keeping Assist System	—	✓
Dual Rear Side-Mounted Airbags	—	✓
Front Integrated Headrests	—	✓

Engine

Feature	BMW	Audi
Base Engine Displacement	4.4 L	4.0 L
Number of Cylinders	V8	V8
Base Engine Type	mild hybrid	mild hybrid
Horsepower	617 hp @ 6000 rpm	631 hp @ 6000 rpm
Torque	553 lb-ft @ 1800 rpm	627 lb-ft @ 2300 rpm
Number of Valves	32	32
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	BMW	Audi
Transmission Type	8-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
Hill Descent Control	✓	✓
[object Object]	—	✓
[object Object]	—	✓

Fuel

Feature	BMW	Audi
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	13/18 MPG	14/20 MPG
EPA Fuel Economy (Combined)	15 MPG	16 MPG
EPA Driving Range (City/Highway)	284.7/394.2 mi.	315.0/450.0 mi.
Fuel Tank Capacity	21.9 gal.	22.5 gal.

Comfort & Convenience

Feature	BMW	Audi
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	—
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Front View Camera	✓	✓
Side View Camera	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	—
Automatic Parking Assist	✓	—
Wireless Charging Pad	✓	✓
Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	✓
Four Zone Climate Control	✓	✓
Rear Ventilation Ducts with Fan Control	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Rear Parking Sensors with Side Sensing	—	✓
Adaptive Cruise Control	—	✓

In Car Entertainment

Feature	BMW	Audi
Infotainment Display	14.9 in	10.1 in
AM/FM Stereo	✓	✓
Premium Speaker Brand	Harman/Kardon	—
Stereo Power	464W	730W
Speaker System	16	17
Subwoofer Count	2	1
Surround Audio	Discrete	Discrete
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
Auxiliary Audio Input	✓	—
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	12 months	3 months
Premium Brand Speakers	—	Bang & Olufsen
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓

Power Feature

Feature	BMW	Audi
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	1st Row Power Glass Extended
Keyless Entry	✓	✓
Reverse Tilt Passenger Mirror	✓	—
Heated Mirrors	✓	✓

Frontseats

Feature	BMW	Audi
Front Head Room	39.3 in.	37.1 in.
Front Leg Room	40.4 in.	41.3 in.
Front Shoulder Room	60.0 in.	59.5 in.
Seat Material: Premium Leather	✓	✓
Front Seat Type: Sport	✓	✓
Driver Seat Power Adjustments	14-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Thigh Extension	✓	—
Driver Seat Memory Settings	2	2
Passenger Seat Power Adjustments	14-way	8-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Passenger Seat Thigh Extension	✓	—
Passenger Seat Memory Settings	2	2
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	—	✓
Passenger Seat Ventilation	—	✓

Rearseats

Feature	BMW	Audi
Rear Head Room	37.5 in.	38.1 in.
Rear Leg Room	35.7 in.	40.2 in.
Rear Shoulder Room	57.7 in.	58.4 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Reclining Rear Seats	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	BMW	Audi
Wheel Finish	Painted Alloy	—
Wheel Size	21 x 11.5 in.	—
Tire Type	Performance	Performance
Tire Size	315/35R	295/40R22
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Material	—	Alloy
Wheel Diameter	—	22 in

Suspension

Feature	BMW	Audi
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	BMW	Audi
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	12 yr./ unlimited mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	3 yr./ 36000 mi.	3 yr./ 30000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 BMW X6 M and 2026 Audi RS Q8.

How much more powerful is the Audi RS Q8 than the BMW X6 M?

The 2026 Audi RS Q8 holds a clear power advantage, producing 631 horsepower and 627 lb-ft of torque. In comparison, the 2025 BMW X6 M delivers 617 horsepower and 553 lb-ft of torque.

Is the higher price of the Audi RS Q8 worth the extra cargo space?

The Audi costs $6,200 more upfront but rewards you with 33 cu ft of cargo space, while the BMW offers only 27.4 cu ft. If you frequently haul gear, that extra 5.6 cu ft might justify the premium.

Do both high-performance SUVs require the same type of fuel?

Yes, both the 2025 BMW X6 M and the 2026 Audi RS Q8 mandate the use of premium unleaded fuel to achieve their stated horsepower and torque figures.

What is the difference in fuel economy between these two crossovers?

The difference is minimal, but the Audi edges out the BMW slightly; the RS Q8 achieves 16 MPG combined, whereas the X6 M is rated at 15 MPG combined.

Which vehicle has a greater width for fitting into tight parking spots?

While both are wide vehicles, the 2025 BMW X6 M is marginally wider at 79.5 inches, compared to the 2026 Audi RS Q8's width of 79.0 inches.

Are the transmissions the same between the X6 M and the RS Q8?

Both performance crossovers utilize an 8-speed shiftable automatic transmission, ensuring quick gear changes suitable for their high-horsepower engines.