BMW 3 Series Saloon vs Mercedes-Benz C-Class Saloon

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

3 Series Saloon compared with C-Class Saloon

	BMW3 Series Saloon	Mercedes-BenzC-Class Saloon
Overview
Released
Released	March 2019	2021
Performance
Powertrain
Powertrain	Petrol, Plug-in hybrid, Mild hybrid	Mild hybrid, Plug-in hybrid
Power
Power	181–386 bhp (better)	215–322 bhp
0–62 mph
0–62 mph	4.3–7.4 s (better)	5.9–7.3 s
Top speed
Top speed	143–155 mph	149–155 mph
Engine or motors
Engine or motors	320i: 1,998 cc four-cylinder turbo petrol, 135 kW (184 hp); 330e: same engine plus an 80 kW (109 hp) motor, 215 kW (292 hp) system output; M340i xDrive and Black Edition: 2,998 cc six-cylinder turbo petrol with 48 V mild hybrid, 288 kW (392 hp) system output; bhp converted from BMW's kW figures	1,999 cc four-cylinder turbo petrol: C 250 160 kW (218 hp) and C 300 190 kW (258 hp), each with a 17 kW mild-hybrid motor; C 300e 160 kW engine plus 100 kW electric motor, 240 kW (326 hp) system output; bhp converted from Mercedes' kW figures
Torque
Torque	300 Nm (320i), 420 Nm system (330e), 540 Nm (M340i xDrive)	320 Nm (C 250), 400 Nm (C 300), 550 Nm system (C 300e)
Gearbox
Gearbox	8-speed Steptronic automatic	9G-TRONIC 9-speed automatic
Drive
Drive	Rear-wheel drive (320i, 330e) or xDrive all-wheel drive (M340i)	Rear-wheel drive
Range and charging
Zero-emission range (WLTP)
Zero-emission range (WLTP)	61–63 miles	67 miles (better)
Battery
Battery	19.5 kWh	19.53 kWh (better)
Fastest charging
Fastest charging	–	55 kW
Economy (WLTP)
Economy (WLTP)	40.4–353.1 mpg (better)	42.9–117.8 mpg
Range detail
Range detail	330e WLTP electric range 59–63 miles depending on trim and equipment	C 300e WLTP electric range 67 miles
Charging
Charging	330e: 19.5 kWh battery; 11 kW AC, 0–100% in 2 hours 15 minutes	C 300e: 19.53 kWh usable battery; 11 kW AC (0–100% in 2 hours); DC up to 55 kW (10–80% in 20 minutes)
Efficiency
Efficiency	WLTP combined: 41.5–43.5 mpg (320i), 313.9–353.1 mpg (330e, GB figures; BMW also lists 104.6–117.7 mpg for Northern Ireland), 37.7–40.4 mpg (M340i xDrive)	WLTP combined: 43.5 mpg (C 250), 42.9 mpg (C 300), 117.8 mpg and 15.1 kWh/100 km (C 300e)
CO2 emissions
CO2 emissions	147–154 g/km (320i), 19–21 g/km (330e), 159–172 g/km (M340i xDrive), WLTP combined	147 g/km (C 250), 150 g/km (C 300), 54 g/km weighted (C 300e)
Practicality
Body
Body	Saloon	Saloon
Seats
Seats	5	5
Boot
Boot	–	455 litres
Length
Length	4,713 mm	4,766 mm
Width
Width	1,827 mm	1,820 mm
Weight
Weight	–	From 1,747 kg
Boot
Boot	480 litres (320i, M340i); 375 litres (330e)	455 litres (C 250, C 300); 315 litres (C 300e)
Towing
Towing	Up to 1,600 kg braked (320i), 1,500 kg (330e), 1,800 kg (M340i)	1,800 kg braked, 750 kg unbraked
Size
Size	4,713 mm long (4,714 mm M340i), 1,827 mm wide (2,068 mm with mirrors), 1,440 mm high (1,446 mm 330e); 2,851 mm wheelbase; EC unladen weight including a 75 kg driver is 1,590 kg (320i), 1,910 kg (330e), 1,835 kg (M340i xDrive)	4,766 mm long, 1,820 mm wide without mirrors (2,047 mm with), 1,438 mm high (1,442 mm C 300e); 11.07 m turning circle; kerb weight 1,747 kg (C 250), 1,778 kg (C 300), 2,118 kg (C 300e)