BMW M3 G80 vs Mercedes-Benz C-Class W206
BMW M3
G80 · 2021 – 2026
The current M3 (G80), BMW’s high-performance saloon on the CLAR platform.
Mercedes-Benz C-Class
W206 · 2021 – 2026
The fifth-generation C-Class on the MRA2 platform.
BMW M3
Pick the G80 for the first M3 with optional M xDrive and a manual base variant — S58 pace with everyday saloon practicality.
Mercedes-Benz C-Class
Pick the C-Class for an S-Class-inspired interior, a hushed ride and efficient engines in a premium compact executive sedan.
Performance
M3 Competition · Petrol vs M254 C 200 · Petrol
| BMW M3 | Mercedes-Benz C-Class | |
|---|---|---|
| Power |
510 hp
Winner
|
204 hp
|
| Torque |
650 Nm
Winner
|
300 Nm
|
| 0–100 km/h |
3,9 s
Winner
|
7,3 s
|
| Top speed |
250 km/h
Winner
|
246 km/h
|
| Power-to-weight |
286,5 hp/t
Winner
|
129,5 hp/t
|
| CO₂ emissions (WLTP) |
230 g/km
|
140 g/km
Winner
|
| Consumption (WLTP) |
10,5 L/100km
|
6,2 L/100km
Winner
|
Dimensions & space
| BMW M3 | Mercedes-Benz C-Class | |
|---|---|---|
| Boot |
480 L
Winner
|
455 L
|
| Boot (seats folded) |
1.200 L
|
—
|
| Wheelbase |
2,86 m
|
2,87 m
Winner
|
| Length |
4,79 m
|
4,75 m
|
| Ground clearance |
12,0 cm
|
13,0 cm
|
| Turning circle |
12,2 m
|
11,1 m
Winner
|
| Towing capacity (braked) |
0 kg
|
1.800 kg
Winner
|
Powertrain & tech
| BMW M3 | Mercedes-Benz C-Class | |
|---|---|---|
| Platform | CLAR (G80, rear-wheel drive or xDrive) | MRA2 (rear-wheel-drive base) |
| Drive | Rear-wheel drive · All-wheel drive | Rear-wheel drive · All-wheel drive |
| Engine family | S58 3.0 twin-turbo petrol | M254 petrol · OM654 diesel · plug-in hybrid |
| Transmission | 8-speed automatic | 9-speed 9G-TRONIC |
| Fuel | Petrol | Petrol |
| Euro standard | Euro 6d | Euro 6d |
| LEZ access | Unrestricted access (compliant under current legislation) | Unrestricted access (compliant under current legislation) |
Reliability & watch-outs
Known issues
- Cooling-system plastics and electric water pump
- Oil-cooler or seal sweating (early cars)
- Carbon buildup on intake valves (direct injection)
- Early OM654 diesel: rocker arm / camshaft concerns
- 9G-TRONIC: fluid changes recommended earlier than official intervals
- MBUX software glitches (mostly fixed via updates)
- M254 (48V mild-hybrid): electrical issues possible
Pros
- Rear-wheel drive retains classic M balance
- xDrive versions are quicker and more secure in poor grip
- Usable rear seats and a 480 L boot for a performance saloon
- MBUX dual-screen and modern S-Class-inspired styling
- Efficient OM654 2.0 diesel (C 220 d: 200 hp / 440 Nm, ~4.6 L/100 km)
- MRA2 rear-wheel-drive platform with optional 4MATIC
- C 300 e PHEV: 313 hp and 550 Nm, ~100 km electric range
Cons
- Big and heavy (~1,705–1,940 kg)
- Firm ride, especially in stiffer settings
- OM654 diesel: AdBlue/DPF watch-points with lots of short trips
- PHEV (C 300 e) shrinks boot space
- 9G-TRONIC needs earlier-than-official fluid changes
Driving experience
BMW M3
Powerful, refined and highly capable. Steering is precise, body control is excellent and the car feels planted and engaging. Rear-drive versions retain classic M balance and playfulness; xDrive versions are more neutral, secure and quicker off the line. Adaptive M suspension offers a wide range between firm and acceptable comfort. The S58 is strong, free-revving and characterful with excellent mid-range and high-rev performance. The manual (base) is engaging; the ZF 8-speed (Competition) is quick and smooth. Overall a highly versatile high-performance saloon that balances dynamics with everyday usability better than many predecessors.
Mercedes-Benz C-Class
Serene, refined and quietly effortless to drive. The W206 puts comfort first: the ride is supple and isolating, the 9G-Tronic shifts are seamless, and the cabin stays hushed at speed. Steering is light and precise rather than talkative, and the body rolls a little more than a 3 Series in corners, but it never feels unsettled. 4MATIC adds all-weather traction without changing the relaxed character. Every engine is a 48-volt mild hybrid, so the petrols are smooth and eager, the diesels pull strongly and stay quiet, and the C 300 e plug-in glides on electric power around town. Overall a calm, tech-rich executive saloon that trades ultimate sportiness for effortless long-distance comfort.
Belgian taxes & LEZ
For sale at dealers
BMW M3
11 for sale · from € 69.950
Mercedes-Benz C-Class
0 for saleNo listings at the moment
