2025 Audi A6 allroad vs 2026 Mercedes-Benz GLC Coupe

$70,500 · Wagon

$59,650 · Crossover

Comparison Overview

The 2025 Audi A6 allroad explodes onto the scene as the performance stalwart, boasting a formidable 335 hp and 369 lb-ft of torque channeled through its sophisticated 7-speed automated manual. This German wagon excites with its low-slung stance and standard all-wheel drive prowess. Contrasting this is the 2026 Mercedes-Benz GLC Coupe, which appeals with a sleeker, taller design, prioritizing efficiency, achieving a slightly better 26 MPG combined versus the Audi’s 25 MPG. While the GLC Coupe saves you a substantial $10,850 off the line, starting at $59,650 compared to the A6 allroad's $70,500, the Audi delivers a significant 80 hp advantage. The A6 allroad’s substantial 30 cubic feet of cargo space also easily dwarfs the GLC Coupe’s 19.2 cubic feet, making the Audi a more versatile powerhouse despite demanding premium unleaded fuel for both.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLC Coupe

The GLC Coupe offers superior efficiency with 23/31 MPG city/highway ratings compared to the A6 allroad's 22/30 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Audi A6 allroad

The 2025 Audi A6 allroad provides significantly more utility with 30 cubic feet of cargo capacity against the GLC Coupe's 19.2 cubic feet.

🏎️ Best for Enthusiasts

2025 Audi A6 allroad

The A6 allroad’s potent 335 hp and 369 lb-ft of torque offer substantially more raw performance than the GLC Coupe’s 255 hp.

💰 Best Value

2026 Mercedes-Benz GLC Coupe

The Mercedes-Benz GLC Coupe undercuts the Audi by a notable $10,850, representing a stronger entry price point.

Choose the Audi A6 allroad if...

You demand outright acceleration, benefiting from the 335 hp engine output.
You prioritize maximum hauling capability with 30 cu ft of available cargo space.
You prefer the engaging shift characteristics of a 7-speed automated manual transmission.

Choose the Mercedes-Benz GLC Coupe if...

Keeping the initial purchase price under $60,000 is a priority, given the $59,650 MSRP.
You seek marginally better fuel economy, rated at 26 combined MPG.
A slightly taller vehicle profile (63.5 inches) is preferred over the wagon's lower stance.

Key Dimensions

Dimension	Audi A6 allroad	Mercedes-Benz GLC Coupe
Length	194.9"	187.6"
Width	74.9"	74.4"
Height	58.9"	63.5"
Wheelbase	115.2"	113.7"

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 Multi-Adjustable Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Adaptive Headlights	—	✓
Front Power Adjustable Headrests	—	✓

Engine

Feature	Audi	Mercedes-Benz
Base Engine Displacement	3.0 L	2.0 L
Number of Cylinders	V6	inline 4
Base Engine Type	mild hybrid	mild hybrid
Horsepower	335 hp @ 6100 rpm	255 hp @ 5800 rpm
Torque	369 lb-ft @ 1400 rpm	295 lb-ft @ 2000 rpm
Number of Valves	24	16
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	7-speed automated manual	9-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
Center Differential Type	Limited Slip	Limited Slip
Hill Descent Control	✓	✓

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	22/30 MPG	23/31 MPG
EPA Fuel Economy (Combined)	25 MPG	26 MPG
EPA Driving Range (City/Highway)	424.6/579.0 mi.	400.2/539.4 mi.
Fuel Tank Capacity	19.3 gal.	17.4 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	✓	✓
Cargo Floor Mats	✓	—
Cruise Control on Steering Wheel	—	✓
Automatic Parking Assist	—	✓
Overhead Console with Storage	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓

In Car Entertainment

Feature	Audi	Mercedes-Benz
Infotainment Display	10.1 in	11.9 in
AM/FM Stereo	✓	✓
Premium Brand Speakers	Bang & Olufsen	—
Stereo Power	705W	—
Speaker System	16	—
Subwoofer Count	1	—
Surround Audio	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
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	✓	✓

Frontseats

Feature	Audi	Mercedes-Benz
Front Head Room	38.3 in.	38.9 in.
Front Leg Room	41.3 in.	40.8 in.
Front Shoulder Room	57.8 in.	57.3 in.
Seat Material: Leather	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	—
Passenger Seat Ventilation	✓	—
Seat Material: Leatherette	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Audi	Mercedes-Benz
Rear Head Room	39.5 in.	38.3 in.
Rear Leg Room	37.4 in.	37.2 in.
Rear Shoulder Room	56.5 in.	57.3 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Heated Rear Seats (Multi-Level)	✓	—
Reclining Rear Seats	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Audi	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Diameter	20 in.	—
Tire Type	All Season	All Season
Tire Size	245/45R20	235/55R19
Spare Tire Type	Temporary	Temporary
Spare Tire Location	Inside Mounted	Inside Mounted
Wheel Size	—	19 x 8.0 in

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 A6 allroad and 2026 Mercedes-Benz GLC Coupe.

How significant is the performance gap between the two vehicles?

The performance difference is substantial, as the 2025 Audi A6 allroad delivers 335 hp and 369 lb-ft of torque, which is 80 more horsepower than the 2026 Mercedes-Benz GLC Coupe’s 255 hp.

Which vehicle is better for hauling gear and luggage?

The Audi A6 allroad is the clear winner for cargo, offering a maximum capacity of 30 cubic feet, vastly exceeding the GLC Coupe’s 19.2 cubic feet.

Does the lower price of the Mercedes translate to better running costs?

The GLC Coupe has a lower starting MSRP of $59,650, and it also achieves slightly better fuel economy (26 MPG combined vs. 25 MPG combined for the Audi), contributing to lower overall running costs.

Are the transmissions fundamentally different between the two luxury vehicles?

Yes, the Audi employs a 7-speed automated manual transmission, known for faster shifts, whereas the Mercedes-Benz utilizes a more conventional 9-speed shiftable automatic.

What is the dimensional difference between the wagon and the crossover coupe?

The Audi A6 allroad is nearly 7 inches longer (194.9 inches) than the GLC Coupe (187.6 inches), but the GLC Coupe stands nearly 5 inches taller (63.5 inches vs. 58.9 inches for the Audi).