2025 Audi RS 6 vs 2025 Mercedes-Benz Maybach GLS

$126,600 · Wagon

$178,450 · Crossover

Comparison Overview

The primary disparity between the 2025 Audi RS 6 and the 2025 Mercedes-Benz Maybach GLS is their MSRP, featuring a substantial $51,850 gap, with the Maybach GLS retailing at $178,450 against the Audi’s $126,600. Performance metrics also show the RS 6 leading, generating 621 hp and 627 lb-ft of torque compared to the Maybach GLS’s 550 hp and 538 lb-ft of torque. However, the larger GLS offers greater physical presence, measuring 204.9 inches long and 72.4 inches high, versus the RS 6’s 196.7-inch length and 58.6-inch height. Fuel economy favors the wagon slightly, achieving a combined 17 MPG against the Maybach’s 15 MPG. While the RS 6 offers 30 cu ft of cargo space, the larger SUV only holds 18.4 cu ft, a notable difference given its size.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Audi RS 6

The Audi RS 6 is marginally more fuel-efficient with a 17 MPG combined rating compared to the Maybach GLS’s 15 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz Maybach GLS

The Mercedes-Benz Maybach GLS, being a Crossover with significantly greater height (72.4 inches vs. 58.6 inches), offers superior road presence and perceived passenger room.

🏎️ Best for Enthusiasts

2025 Audi RS 6

The 2025 Audi RS 6 dominates performance specifications, delivering 621 hp and 627 lb-ft of torque.

💰 Best Value

2025 Audi RS 6

The Audi RS 6 provides significantly more horsepower (621 hp vs. 550 hp) while carrying a $51,850 lower starting MSRP.

Choose the Audi RS 6 if...

You prioritize outright performance, given the RS 6's 621 hp output.
You require maximum cargo utility, as the RS 6 offers 30 cu ft versus 18.4 cu ft.
You need to save approximately $51,850 in initial purchase cost.

Choose the Mercedes-Benz Maybach GLS if...

You prefer the elevated driving position of a Crossover body style.
You need greater physical dimensions, as the Maybach GLS is 204.9 inches long and 79.9 inches wide.
You prefer the marginally smoother gear swapping capability of the 9-speed transmission over the RS 6's 8-speed.

Key Dimensions

Dimension	Audi RS 6	Mercedes-Benz Maybach GLS
Length	196.7"	204.9"
Width	76.8"	79.9"
Height	58.6"	72.4"
Wheelbase	115.3"	123.4"

Features Comparison

Safety

Feature	Audi	Mercedes-Benz
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	—	✓
Front Cross Traffic Alert	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Adaptive Headlights	—	✓
Cornering Lights	—	✓
Front Power Adjustable Headrests	—	✓
Rear Multi-Adjustable Headrests	—	✓

Engine

Feature	Audi	Mercedes-Benz
Base Engine Displacement	4.0 L	4.0 L
Number of Cylinders	V8	V8
Base Engine Type	mild hybrid	mild hybrid
Horsepower	621 hp	550 hp @ 6500 rpm
Torque	627 lb-ft	538 lb-ft @ 5000 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	Mercedes-Benz
Transmission Type	8-speed shiftable automatic	9-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
Center Differential Type	—	Limited Slip
Hill Descent Control	—	✓

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	14/21 MPG	13/18 MPG
EPA Fuel Economy (Combined)	17 MPG	15 MPG
EPA Driving Range (City/Highway)	270.2/405.3 mi.	309.4/428.4 mi.
Fuel Tank Capacity	19.3 gal.	23.8 gal.

Comfort & Convenience

Feature	Audi	Mercedes-Benz
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	—	✓
Sun Sensor	—	✓

In Car Entertainment

Feature	Audi	Mercedes-Benz
Infotainment Display	10.1 in	12.3 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	✓	With Real Time Traffic
Satellite Radio Trial Period	3 months	—
Premium Brand Stereo System	—	Burmester
Premium Speaker Brand	—	Burmester
Stereo Power	—	1590W
Speaker System	—	27
Subwoofer Count	—	1
Android Auto (Wired)	—	✓
Apple CarPlay (Wired)	—	✓
Satellite Radio Subscription Duration	—	36 months
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	Audi	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	2nd Row Fixed Glass
Keyless Entry	✓	✓
Heated Mirrors	✓	✓
Sunroof Type	—	1st Row Power Fabric Extended
Reverse Tilt Dual Mirrors	—	✓

Frontseats

Feature	Audi	Mercedes-Benz
Front Head Room	38.3 in.	42.5 in.
Front Leg Room	41.3 in.	40.3 in.
Front Shoulder Room	57.8 in.	59.3 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	3
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	✓	✓
Front Seat Type: Bucket	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3
Seat Massage Function	—	✓

Rearseats

Feature	Audi	Mercedes-Benz
Rear Head Room	39.5 in.	40.2 in.
Rear Leg Room	37.4 in.	43.4 in.
Rear Shoulder Room	56.5 in.	56.1 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Reclining Rear Seats	—	✓
Folding Center Armrest	—	✓
Heated Rear Seats (Multi-Level)	—	✓
Rear Seat Ventilation	—	✓

Tires and Wheels

Feature	Audi	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Size	21 in	22 x 11.5 in.
Tire Type	Performance	Performance
Tire Size	275/35R21	325/40R22

Suspension

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

Warranty

Feature	Audi	Mercedes-Benz
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.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi RS 6 and 2025 Mercedes-Benz Maybach GLS.

How much faster is the Audi RS 6 than the Maybach GLS?

The Audi RS 6 boasts a 71 hp advantage over the Maybach GLS (621 hp vs. 550 hp), suggesting superior acceleration metrics that are not fully quantified here. Both vehicles utilize required premium unleaded fuel.

Which vehicle offers better utility for hauling large items?

The Audi RS 6 Wagon provides 30 cu ft of cargo capacity, significantly exceeding the Mercedes-Benz Maybach GLS Crossover’s 18.4 cu ft. This is surprising given the Maybach GLS is physically much larger (204.9 inches long).

What is the financial consequence of choosing the Maybach GLS over the Audi?

Choosing the 2025 Mercedes-Benz Maybach GLS commands a $178,450 MSRP, which is $51,850 more expensive than the $126,600 starting price of the 2025 Audi RS 6.

Are there major differences in their AWD systems or transmissions?

Both vehicles utilize All-Wheel Drive, but the Maybach GLS employs a 9-speed shiftable automatic, while the RS 6 uses an 8-speed shiftable automatic.

How significant is the difference in fuel economy?

The Audi RS 6 is rated at 17 MPG combined (14 City/21 Highway), offering 2 MPG better combined efficiency than the Maybach GLS, which achieves 15 MPG combined (13 City/18 Highway).

How much larger is the physical footprint of the Maybach GLS?

The Maybach GLS is substantially larger, measuring 204.9 inches in length and 72.4 inches in height, compared to the RS 6’s length of 196.7 inches and height of 58.6 inches.