Audi Q6 e-tron vs Mercedes-Benz GLC

Audi Q6 e-tron

Audi’s electric premium SUV.

Mercedes-Benz GLC

Mercedes' mid-size SUV on the MRA platform.

First car

Second car

Pick this one if…

Audi Q6 e-tron

Pick the Q6 e-tron for 270 kW DC charging and the ~95 kWh battery — accepting the new-model reliability risk.

Best engine: The quattro with the larger battery for the best balance of range and performance.

Read the full guide

Pick this one if…

Mercedes-Benz GLC

Pick the GLC for space, comfort and efficient engines in a premium mid-size SUV.

Best engine: The GLC 220 d (diesel) or GLC 250 (petrol) — the sweet spot.

Read the full guide

Performance

quattro · Electric vs M274 GLC 250 · Petrol

	Audi Q6 e-tron	Mercedes-Benz GLC
Power	388 hp Winner	211 hp
Torque	855 Nm Winner	350 Nm
0–100 km/h	5,9 s Winner	7,3 s
Top speed	210 km/h	222 km/h Winner
Power-to-weight	165,1 hp/t Winner	121,6 hp/t
CO₂ emissions (WLTP)	0 g/km Winner	152 g/km
Consumption (WLTP)	—	6,5 L/100km

Dimensions & space

	Audi Q6 e-tron	Mercedes-Benz GLC
Boot	526 L	550 L Winner
Boot (seats folded)	1.529 L	1.600 L Winner
Wheelbase	2,90 m Winner	2,87 m
Length	4,77 m	4,66 m
Width	1,94 m	1,89 m
Height	1,65 m	1,64 m
Seats	5	5

Powertrain & tech

	Audi Q6 e-tron	Mercedes-Benz GLC
Platform	PPE (Premium Platform Electric, 800-volt)	MRA (rear-wheel-drive base, shared with the C-Class W205)
Drive	Rear-wheel drive · All-wheel drive	Rear-wheel drive · All-wheel drive
Engine family	Electric motors (RWD / quattro)	M274/M264 petrol · OM651/OM654 diesel · plug-in hybrid
Fuel	Electric	Petrol · Diesel · Plug-in hybrid
Transmission	Single-speed automatic (fixed ratio)	9G-TRONIC automatic
Euro standard	N/A (electric)	Euro 6 (early) · Euro 6d (later)
LEZ access	Zero-emission — unrestricted access in all LEZ zones	Euro 6 diesel allowed in the LEZ (Brussels/Antwerp/Ghent)

Reliability & watch-outs

Known issues

Audi Q6 e-tron

Early software bugs in the infotainment and driver-assist systems
As a new model, long-term battery and drivetrain reliability is not yet proven
High-voltage system check recommended before buying used

Mercedes-Benz GLC

Early OM651 diesel: timing chain and AdBlue/NOx watch-points
9G-TRONIC: fluid changes recommended earlier than official intervals
AIRMATIC air suspension can leak at high mileage
COMAND/MBUX software glitches (mostly fixed via updates)

Pros

Audi Q6 e-tron

800-volt architecture enables 270 kW DC charging
100 kWh battery (~95 kWh usable)
526-litre boot (plus optional 64-litre frunk)

Mercedes-Benz GLC

550 L boot growing to ~1,600 L — roomy for a mid-size SUV
Efficient OM654 2.0 diesel (GLC 220 d: 194 hp / 400 Nm)
MRA rear-wheel-drive platform with optional 4MATIC
GLC 350 e PHEV: 320 hp system output and 560 Nm, company-car friendly

Cons

Audi Q6 e-tron

Long-term battery reliability is not yet proven (2024 launch)
Range drops in cold weather

Mercedes-Benz GLC

OM651/OM654 diesel: AdBlue/DPF watch-points with lots of short trips
PHEV (GLC 350 e) shrinks boot space (395 L)
Complex electronics and air suspension need dealer maintenance

Driving experience

Audi Q6 e-tron

As a model line, the Q6 e-tron accelerates strongly and silently on its electric motors, and the ride filters out poor surfaces. It feels planted and secure rather than sporty. Regeneration is adjustable for one-pedal driving in town. The quattro has 388 hp, and the 800-volt system charges at up to 270 kW DC, so long trips need short stops.