2025 Audi RS 7 vs 2025 Mercedes-Benz S-Class

$128,600 · Sedan

$117,750 · Sedan

Comparison Overview

The most significant numerical difference between the 2025 Audi RS 7 and the 2025 Mercedes-Benz S-Class lies in power output, with the RS 7 delivering a substantial 179 hp advantage (621 hp vs. 442 hp) and 214 lb-ft more torque (627 lb-ft vs. 413 lb-ft). This performance disparity is reflected in the pricing, where the RS 7 commands an MSRP of $128,600, $10,850 more than the S-Class's $117,750. However, efficiency metrics heavily favor the S-Class, achieving a combined 24 MPG compared to the RS 7's 17 MPG. Furthermore, the S-Class offers superior utility, boasting a significantly larger exterior length at 208.2 inches against the RS 7's 197.2 inches, yet counterintuitively, the RS 7 provides nearly double the cargo volume at 24.6 cu ft versus the S-Class's 12.8 cu ft. The S-Class utilizes a 9-speed automatic while the RS 7 employs an 8-speed unit.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz S-Class

The Mercedes-Benz S-Class is the clear winner for commuters due to its superior combined fuel economy of 24 MPG versus the RS 7's 17 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz S-Class

The S-Class offers a significantly longer wheelbase (implied by 208.2 inches total length) and marginally greater height (59.2 inches vs 56.1 inches), suggesting better rear passenger accommodation than the RS 7.

🏎️ Best for Enthusiasts

2025 Audi RS 7

The Audi RS 7 appeals more to driving enthusiasts with its commanding 621 hp and 627 lb-ft of torque, drastically overshadowing the S-Class's output.

💰 Best Value

2025 Mercedes-Benz S-Class

The Mercedes-Benz S-Class offers significantly better fuel economy (7 MPG combined better) and a lower MSRP for buyers prioritizing efficiency over raw performance.

Choose the Audi RS 7 if...

Maximum acceleration and high-performance output (621 hp) are the top priority for the driver.
The user requires substantial luggage space, as the RS 7 offers 24.6 cu ft of cargo capacity, nearly double the S-Class.
The driver prefers the marginally lower curb weight implied by the slightly smaller exterior footprint (197.2 inches length).

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

Long-term running costs matter, given the S-Class achieves 24 MPG combined vs. the RS 7's 17 MPG.
The user prefers the more spacious physical dimensions, featuring a 208.2-inch overall length and a 9-speed transmission.
A purchase price under $120,000 is a budget constraint, as the S-Class is $10,850 less expensive at $117,750.

Key Dimensions

Dimension	Audi RS 7	Mercedes-Benz S-Class
Length	197.2"	208.2"
Width	76.8"	76.9"
Height	56.1"	59.2"
Wheelbase	115.3"	126.6"

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 Fixed 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	—	✓
Self-Leveling Headlights	—	✓
Cornering Lights	—	✓
Front Power Adjustable Headrests	—	✓
Rear Multi-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	442 hp
Torque	627 lb-ft	413 lb-ft
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	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
Center Differential Type	—	Limited Slip

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	14/21 MPG	21/31 MPG
EPA Fuel Economy (Combined)	17 MPG	24 MPG
EPA Driving Range (City/Highway)	270.2/405.3 mi.	420.0/620.0 mi.
Fuel Tank Capacity	19.3 gal.	20.0 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	—	✓
Overhead Console with Storage	—	✓
Wood Trim on Steering Wheel	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓
Extended Cabin Heating/Cooling	—	✓
Sun Sensor	—	✓

In Car Entertainment

Feature	Audi	Mercedes-Benz
Infotainment Display	10.1 in	12.8 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 Speaker Brand	—	Burmester
Stereo Power	—	710W
Speaker System	—	15
Subwoofer Count	—	2
Auxiliary Audio Input	—	✓
Memory Card Slot	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	Audi	Mercedes-Benz
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	Mercedes-Benz
Front Head Room	37.0 in.	42.1 in.
Front Leg Room	41.3 in.	41.4 in.
Front Shoulder Room	57.2 in.	59.6 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	✓	✓
Seat Material: Leather	—	✓
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	37.1 in.	39.4 in.
Rear Leg Room	37.0 in.	43.8 in.
Rear Shoulder Room	55.9 in.	59.0 in.
Split-Folding Rear Seatback	✓	—
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Audi	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Size	21 in	19 x 8.5 in
Tire Type	Performance	—
Tire Size	275/35R21	255/45R19
Run Flat Tires	—	✓

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 7 and 2025 Mercedes-Benz S-Class.

What is the primary performance difference between the 2025 Audi RS 7 and the 2025 Mercedes-Benz S-Class?

The Audi RS 7 delivers significantly more power, boasting 621 hp and 627 lb-ft of torque. This is a massive 179 hp and 214 lb-ft advantage over the Mercedes-Benz S-Class's 442 hp and 413 lb-ft.

Which sedan is more economical for daily driving based on the specifications?

The 2025 Mercedes-Benz S-Class is substantially more economical, achieving a combined 24 MPG (21 city/31 highway). The Audi RS 7 is rated significantly lower at only 17 MPG combined.

How do the cargo capacities compare for utility purposes?

Despite being a smaller vehicle overall, the Audi RS 7 provides nearly twice the utility with 24.6 cubic feet of cargo capacity. The Mercedes-Benz S-Class has only 12.8 cubic feet of space.

Is there a notable difference in MSRP between these two high-end sedans?

Yes, the Audi RS 7 carries an MSRP of $128,600, which is $10,850 higher than the $117,750 starting price listed for the Mercedes-Benz S-Class.

Do both vehicles utilize all-wheel drive and similar transmission types?

Both vehicles feature all-wheel drive systems. However, the RS 7 uses an 8-speed shiftable automatic transmission, while the S-Class is equipped with a 9-speed shiftable automatic.

Which car is physically larger based on exterior measurements?

The Mercedes-Benz S-Class is the larger vehicle dimensionally, measuring 208.2 inches in length and 59.2 inches in height. The Audi RS 7 is shorter in length at 197.2 inches and slightly lower at 56.1 inches.