2025 Audi RS 6 vs 2026 BMW ALPINA XB7

$126,600 · Wagon

$156,000 · Crossover

Comparison Overview

Choosing between the 2025 Audi RS 6 Avant and the 2026 BMW ALPINA XB7 often boils down to wagon stealth versus full-size utility. You're looking at two high-performance behemoths, but they approach the segment differently. The RS 6 starts strong with an MSRP of $126,600, offering 621 hp and a respectable 30 cu ft of cargo space, while delivering a combined 17 MPG. Contrast that with the larger XB7, priced $29,400 higher at $156,000, which packs 631 hp and boasts significantly more utility with 48.6 cu ft of cargo capacity. A major practical trade-off is efficiency: the Audi achieves 21 MPG on the highway, a substantial 17 MPG improvement over the XB7 if you only consider the specified highway/combined figures, even though the XB7 fuel economy wasn't fully listed—it's implied the larger SUV will consume more premium fuel. Ultimately, the decision rests on whether the extra size and refinement of the XB7 justify its much higher cost and potential running expenses compared to the RS 6's unique, low-slung performance package.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Audi RS 6

The Audi RS 6 is the winner for daily commuting due to its slightly smaller footprint (196.7 inches long) and better implied city efficiency, even if both demand premium fuel.

👨‍👩‍👧‍👦 Best for Families

2026 BMW ALPINA XB7

The 2026 BMW ALPINA XB7 clearly wins for families by offering substantially more storage with 48.6 cu ft of cargo capacity compared to the RS 6's 30 cu ft.

🏎️ Best for Enthusiasts

2025 Audi RS 6

While both have over 600 hp, the RS 6's greater torque advantage of 627 lb-ft over the XB7's 590 lb-ft suggests sharper initial acceleration.

💰 Best Value

2025 Audi RS 6

The Audi RS 6 offers 621 hp for $126,600, representing significantly better value than the XB7's $156,000 starting price for only 10 more horsepower.

Choose the Audi RS 6 if...

You prioritize better fuel efficiency, as the RS 6 achieves a combined 17 MPG rating.
You want a lower entry price, starting at $126,600 compared to the ALPINA's $156,000.
You prefer the engaging dynamics of a high-performance wagon over a taller crossover SUV structure.

Choose the BMW ALPINA XB7 if...

Maximum hauling capability is essential, given the XB7 offers 48.6 cu ft of cargo volume.
You need the extra ground clearance and height provided by the XB7's 70.7-inch tall body.
You are willing to pay the extra $29,400 for the marginally higher 631 hp output and increased utility.

Key Dimensions

Dimension	Audi RS 6	BMW ALPINA XB7
Length	196.7"	203.9"
Width	76.8"	78.3"
Height	58.6"	70.7"
Wheelbase	115.3"	122.2"

Features Comparison

Safety

Feature	Audi	BMW
Lane Departure Warning	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Dual Rear 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
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	—
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Headlight Washers	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Integrated Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	—
Blind Spot Monitor	—	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Cornering Lights	—	✓
Front Power Adjustable Headrests	—	✓

Engine

Feature	Audi	BMW
Base Engine Displacement	4.0 L	4.4 L
Number of Cylinders	V8	V8
Base Engine Type	mild hybrid	mild hybrid
Horsepower	621 hp	631 hp @ 5600 rpm
Torque	627 lb-ft	590 lb-ft @ 1800 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	Audi	BMW
Transmission Type	8-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
[object Object]	—	✓
[object Object]	—	✓
Hill Descent Control	—	✓

Fuel

Feature	Audi	BMW
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	14/21 MPG	—
EPA Fuel Economy (Combined)	17 MPG	—
EPA Driving Range (City/Highway)	270.2/405.3 mi.	0/0 mi.
Fuel Tank Capacity	19.3 gal.	21.9 gal.

Comfort & Convenience

Feature	Audi	BMW
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls 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	✓	✓
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	✓	✓
Cruise Control on Steering Wheel	—	✓
Automatic Parking Assist	—	✓
Adaptive Cruise Control	—	✓
Climate Control Zones	—	5
Extended Cabin Heating/Cooling	—	✓

In Car Entertainment

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

Power Feature

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

Frontseats

Feature	Audi	BMW
Front Head Room	38.3 in.	41.9 in.
Front Leg Room	41.3 in.	39.8 in.
Front Shoulder Room	57.8 in.	60.0 in.
Seat Material: Premium Leather	✓	✓
Front Seat Type: Sport	✓	✓
Driver Seat Power Adjustments	10-way	12-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	2
Passenger Seat Power Adjustments	10-way	12-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	✓
Passenger Seat Ventilation	✓	✓
Driver Seat Manual Adjustments	—	2-way
Driver Seat Thigh Extension	—	✓
Passenger Seat Manual Adjustments	—	2-way
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	2
Seat Massage Function	—	✓

Rearseats

Feature	Audi	BMW
Rear Head Room	39.5 in.	39.9 in.
Rear Leg Room	37.4 in.	37.6 in.
Rear Shoulder Room	56.5 in.	58.1 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Folding Center Armrest	—	✓
Heated Rear Seats (Multi-Level)	—	✓
Power Folding Third Row Seat	—	✓

Tires and Wheels

Feature	Audi	BMW
Wheel Material	Alloy	—
Wheel Size	21 in	23 x 11.0 in
Tire Type	Performance	Performance
Tire Size	275/35R21	325/30R
Wheel Finish	—	Painted Alloy
Spare Tire Type	—	Temporary
Spare Tire Location	—	Inside Mounted

Suspension

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

Warranty

Feature	Audi	BMW
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.

Frequently Asked Questions

Common questions about comparing the 2025 Audi RS 6 and 2026 BMW ALPINA XB7.

How much more does the 2026 BMW ALPINA XB7 cost compared to the Audi RS 6?

The ALPINA XB7 has a significant price premium, starting at $156,000, which is exactly $29,400 more expensive than the 2025 Audi RS 6's MSRP of $126,600.

Which vehicle is better for hauling large items?

The 2026 BMW ALPINA XB7 is the clear winner for cargo, offering 48.6 cubic feet of space, dwarfing the Audi RS 6's 30 cubic feet capacity.

Are both cars heavy drinkers of premium fuel?

Yes, both the RS 6 and the XB7 explicitly require premium unleaded fuel for their high-output engines. The RS 6 is rated at a combined 17 MPG.

Is there a significant difference in power between the two?

The difference is negligible; the RS 6 produces 621 hp and 627 lb-ft of torque, while the XB7 edges it out with 631 hp but trails in torque at 590 lb-ft.

How do the physical sizes of these performance vehicles compare?

The XB7 is noticeably larger overall, measuring 203.9 inches long and 70.7 inches high, compared to the RS 6 which is shorter at 196.7 inches and lower at 58.6 inches tall.

Does the wagon body style of the Audi affect its performance?

The RS 6’s wagon configuration allows it to keep a lower center of gravity than the taller crossover XB7, which likely contributes to its slightly better torque output advantage for enthusiastic driving.