2025 Mercedes-Benz GLC-Class Coupe vs 2026 Audi A6 allroad

$59,300 · Crossover

$73,100 · Wagon

Comparison Overview

Trying to decide between a stylish German crossover and a rugged German wagon can be tough, especially when the price gap is substantial. The 2025 Mercedes-Benz GLC-Class Coupe starts at $59,300, making it the significantly more budget-friendly choice over the 2026 Audi A6 allroad, which begins at $73,100. Performance leans heavily toward the Audi; the A6 allroad boasts 335 hp and 369 lb-ft of torque, easily outpacing the GLC's 255 hp and 295 lb-ft. For practical shoppers, the GLC Coupe offers slightly better efficiency at 26 MPG combined versus the Audi's 24 MPG combined. However, if sheer hauling capability matters, the A6 allroad wins hands-down with nearly 30 cubic feet of cargo space (29.9 cu ft) compared to the Mercedes' restrictive 19.2 cu ft, despite being only 7.3 inches longer overall.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz GLC-Class Coupe

The GLC-Class Coupe is the slightly more fuel-efficient choice with 26 MPG combined, which saves money on mandatory premium fuel.

👨‍👩‍👧‍👦 Best for Families

2026 Audi A6 allroad

The Audi A6 allroad offers substantially more storage, boasting 29.9 cu ft of cargo capacity compared to the GLC Coupe's 19.2 cu ft.

🏎️ Best for Enthusiasts

2026 Audi A6 allroad

The A6 allroad provides a significant power advantage, delivering 335 hp and 369 lb-ft of torque versus the GLC's 255 hp.

💰 Best Value

2025 Mercedes-Benz GLC-Class Coupe

The GLC-Class Coupe is $13,800 cheaper, making its slightly lower performance figures more palatable for the lower initial investment.

Choose the Mercedes-Benz GLC-Class Coupe if...

Your budget is strictly capped below $65,000, as the MSRP is $59,300.
You prioritize maximum fuel efficiency, achieving 26 MPG combined.
You prefer the elevated seating position of a true crossover over a wagon body style.

Choose the Audi A6 allroad if...

You require maximum utility, as the 29.9 cu ft of cargo space dwarfs the competition.
You desire significantly more performance from the 335 hp engine.
You prefer the unique handling characteristics of a 7-speed automated manual transmission.

Key Dimensions

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

Features Comparison

Safety

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

Engine

Feature	Mercedes-Benz	Audi
Base Engine Displacement	2.0 L	3.0 L
Number of Cylinders	inline 4	V6
Base Engine Type	mild hybrid	mild hybrid
Horsepower	255 hp @ 5800 rpm	335 hp
Torque	295 lb-ft @ 2000 rpm	369 lb-ft
Number of Valves	16	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Mercedes-Benz	Audi
Transmission Type	9-speed shiftable automatic	7-speed automated manual
Drivetrain Type	all wheel drive	all wheel drive
Center Differential Type	Limited Slip	Limited Slip
Hill Descent Control	✓	✓

Fuel

Feature	Mercedes-Benz	Audi
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	23/31 MPG	21/30 MPG
EPA Fuel Economy (Combined)	26 MPG	24 MPG
EPA Driving Range (City/Highway)	400.2/539.4 mi.	405.3/579.0 mi.
Fuel Tank Capacity	17.4 gal.	19.3 gal.

Comfort & Convenience

Feature	Mercedes-Benz	Audi
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Cruise Control 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	✓	✓
Automatic Parking Assist	✓	—
Wireless Charging Pad	✓	✓
Cruise Control	✓	✓
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Overhead Console with Storage	✓	—
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Dual Zone Climate Control	✓	—
Rear Ventilation Ducts	✓	—
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Heated Steering Wheel	—	✓
Four Zone Climate Control	—	✓
Rear Ventilation Ducts with Fan Control	—	✓
Cargo Floor Mats	—	✓

In Car Entertainment

Feature	Mercedes-Benz	Audi
Infotainment Display	11.9 in	10.1 in
AM/FM Stereo	✓	✓
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	6 months	3 months
Speed Sensitive Volume Control	✓	✓
Premium Brand Speakers	—	Bang & Olufsen
Stereo Power	—	705W
Speaker System	—	16
Subwoofer Count	—	1
Surround Audio	—	Discrete

Power Feature

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

Frontseats

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

Rearseats

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

Tires and Wheels

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

Suspension

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

Warranty

Feature	Mercedes-Benz	Audi
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	6 yr./ 62000 mi.	—
Corrosion/Rust Warranty	4 yr./ 50000 mi.	12 yr./ unlimited mi.
Roadside Assistance	4 yr./ 50000 mi.	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	—	3 yr./ 30000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Mercedes-Benz GLC-Class Coupe and 2026 Audi A6 allroad.

Is the extra cost of the Audi A6 allroad worth the horsepower difference?

The Audi A6 allroad commands an extra $13,800 MSRP, but rewards buyers with 80 more horsepower (335 hp vs. 255 hp) and higher torque. If spirited driving is a priority, this boost in performance justifies the spend.

Which vehicle is better for frequent, long-distance commuting?

The 2025 Mercedes-Benz GLC-Class Coupe edges out the Audi slightly for daily commuting due to its better combined fuel economy rating of 26 MPG, compared to the A6 allroad's 24 MPG. Both require premium unleaded fuel.

How much more interior space does the Audi wagon offer over the Mercedes coupe?

The Audi A6 allroad is far superior for hauling gear, offering 29.9 cubic feet of cargo capacity. This is substantially larger than the GLC-Class Coupe's minimal 19.2 cubic feet, a key difference for families.

Are the dimensions very different between these two German models?

Yes, the Audi A6 allroad is notably longer, measuring 194.9 inches compared to the GLC Coupe's 187.6 inches, which contributes to its superior cargo space. Conversely, the GLC is slightly taller at 63.5 inches versus the Audi's 58.9 inches.

Which vehicle offers a more traditional driving setup?

The Mercedes GLC Coupe uses a conventional 9-speed shiftable automatic transmission, which many drivers find more predictable for city driving. The Audi utilizes a 7-speed automated manual, reflecting its performance focus.