2025 Audi RS 6 vs 2025 Mercedes-Benz G-Class

$126,600 · Wagon

$148,250 · SUV

Comparison Overview

The most significant numerical disparity between the 2025 Audi RS 6 and the 2025 Mercedes-Benz G-Class is their power output, with the Audi producing an additional 178 horsepower, boasting 621 hp compared to the G-Class's 443 hp, alongside 627 lb-ft of torque versus 413 lb-ft. This performance gap is reflected in their MSRPs, as the RS 6 starts at $126,600 while the G-Class commands $148,250, a $21,650 premium. Functionally, the G-Class offers superior utility, providing 34.8 cubic feet of cargo capacity against the RS 6's 30 cubic feet, though the Audi is more fuel-efficient in the city at 14 MPG versus the G-Class’s 17 MPG highway rating. While the G-Class is notably taller at 77.7 inches compared to the wagon's 58.6 inches, the RS 6 utilizes an 8-speed automatic while the G-Class employs a 9-speed unit in their respective AWD/4WD setups.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Audi RS 6

The 2025 Audi RS 6 is preferred for daily commuting due to its superior combined fuel economy of 17 MPG versus the G-Class's 18 MPG combined, slightly edging out the less efficient SUV.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz G-Class

The 2025 Mercedes-Benz G-Class is the better choice for families as it offers 34.8 cu ft of cargo capacity compared to the Audi RS 6's 30 cu ft.

🏎️ Best for Enthusiasts

2025 Audi RS 6

The 2025 Audi RS 6 is the clear winner for driving enthusiasts, delivering a substantial 621 hp and 627 lb-ft of torque versus the G-Class's 443 hp.

💰 Best Value

2025 Audi RS 6

The Audi RS 6 offers substantially more power for $21,650 less than the Mercedes-Benz G-Class, representing a better performance-to-price ratio.

Choose the Audi RS 6 if...

Performance metrics are the top priority, evidenced by its 621 hp output.
Cost savings are crucial, as its MSRP of $126,600 is $21,650 lower than the competitor.
A lower vehicle height (58.6 inches) is preferred over the traditional SUV stance.

Choose the Mercedes-Benz G-Class if...

Maximum available cargo volume (34.8 cu ft) is necessary for hauling needs.
A significantly taller vehicle stance (77.7 inches in height) is required for off-road perception or ingress/egress.
Slightly better highway fuel efficiency (19 MPG) is desired, despite the power deficit.

Key Dimensions

Dimension	Audi RS 6	Mercedes-Benz G-Class
Length	196.7"	190.0"
Width	76.8"	76.0"
Height	58.6"	77.7"
Wheelbase	115.3"	113.8"

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	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Adaptive Headlights	—	✓
Cornering Lights	—	✓
Front Power Adjustable Headrests	—	✓

Engine

Feature	Audi	Mercedes-Benz
Base Engine Displacement	4.0 L	3.0 L
Number of Cylinders	V8	inline 6
Base Engine Type	mild hybrid	mild hybrid
Horsepower	621 hp	443 hp @ 6100 rpm
Torque	627 lb-ft	413 lb-ft @ 1950 rpm
Number of Valves	32	24
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	four wheel drive
[object Object]	✓	—
[object Object]	✓	—
4WD System Type	—	Full Time
Transfer Case Gearing	—	Electronic Hi-Lo
Center Differential Type	—	Limited Slip
[object Object]	—	✓
[object Object]	—	✓
[object Object]	—	✓
Hill Descent Control	—	✓

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	14/21 MPG	17/19 MPG
EPA Fuel Economy (Combined)	17 MPG	18 MPG
EPA Driving Range (City/Highway)	270.2/405.3 mi.	448.8/501.6 mi.
Fuel Tank Capacity	19.3 gal.	26.4 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	—	✓
Three Zone Climate Control	—	✓

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	✓	✓
Satellite Radio Trial Period	3 months	6 months
Premium Brand Stereo System	—	Burmester
Premium Speaker Brand	—	Burmester
Stereo Power	—	760W
Speaker System	—	18

Power Feature

Feature	Audi	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	1st Row Power Glass
Keyless Entry	✓	✓
Heated Mirrors	✓	✓

Frontseats

Feature	Audi	Mercedes-Benz
Front Head Room	38.3 in.	41.9 in.
Front Leg Room	41.3 in.	38.7 in.
Front Shoulder Room	57.8 in.	57.8 in.
Seat Material: Premium Leather	✓	—
Front Seat Type: Sport	✓	—
Driver Seat Power Adjustments	10-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	—
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	10-way	10-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	—
Passenger Seat Ventilation	✓	—
Seat Material: Leather	—	✓
Front Seat Type: Bucket	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Audi	Mercedes-Benz
Rear Head Room	39.5 in.	40.5 in.
Rear Leg Room	37.4 in.	39.5 in.
Rear Shoulder Room	56.5 in.	57.4 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	✓
Pass-Thru Center Armrest	✓	✓
Heated Rear Seats (Multi-Level)	—	✓

Tires and Wheels

Feature	Audi	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Size	21 in	19 x 8.5 in
Tire Type	Performance	All Season
Tire Size	275/35R21	275/55R19
Spare Tire Type	—	Full Size Matching
Spare Tire Location	—	Outside Rear Mounted

Suspension

Feature	Audi	Mercedes-Benz
Four-Wheel Independent Suspension	✓	—
Front Stabilizer Bar	✓	—
Rear Stabilizer Bar	✓	—
Front Suspension Type	—	Independent
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 G-Class.

What is the primary difference in drivetrain hardware between these two models?

The 2025 Audi RS 6 utilizes an all-wheel drive system paired with an 8-speed automatic transmission. In contrast, the 2025 Mercedes-Benz G-Class employs a four-wheel drive system managed by a 9-speed shiftable automatic transmission.

How does the fuel economy compare for city driving?

The Audi RS 6 offers a slightly better city MPG rating at 14 MPG, whereas the Mercedes-Benz G-Class consumes more fuel in urban conditions, rated at 17 MPG for highway driving and presumably lower in the city.

Which vehicle provides more practical interior storage space?

The 2025 Mercedes-Benz G-Class has a clear advantage in cargo capacity, providing 34.8 cubic feet. The 2025 Audi RS 6, despite being a wagon, offers 30 cubic feet of cargo space.

Is the Audi RS 6 significantly less powerful than the G-Class?

Conversely, the Audi RS 6 is significantly more powerful, delivering 621 horsepower and 627 lb-ft of torque. This substantially exceeds the G-Class's output of 443 hp and 413 lb-ft of torque.

How large is the price gap between the two luxury vehicles?

There is a notable $21,650 difference in starting MSRP, with the 2025 Audi RS 6 priced at $126,600 and the 2025 Mercedes-Benz G-Class listed at $148,250.