BMW M3 Saloon vs Mercedes-Benz S-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

M3 Saloon compared with S-Class Saloon

	BMWM3 Saloon	Mercedes-BenzS-Class Saloon
Overview
Released
Released	March 2021	December 2020
Performance
Powertrain
Powertrain	Petrol	Mild hybrid, Plug-in hybrid
Power
Power	523 bhp	308–577 bhp (better)
0–62 mph
0–62 mph	3.5 s (better)	4.4–5.7 s
Top speed
Top speed	155 mph	155 mph
Engine or motors
Engine or motors	2,993 cc six-cylinder twin-turbo petrol, 390 kW (530 hp); bhp converted from BMW's kW figures	S 350 d: 2,989 cc six-cylinder diesel, 230 kW (313 hp) plus 17 kW mild-hybrid motor; S 500: 2,998 cc six-cylinder petrol, 330 kW (449 hp) plus 17 kW; S 450 e: 240 kW petrol six plus 120 kW electric motor, 320 kW (435 hp) system; S 580 e: 330 kW petrol six plus 120 kW motor, 430 kW (585 hp) system; bhp converted from Mercedes' kW figures
Torque
Torque	650 Nm	650 Nm (S 350 d), 600 Nm (S 500), 680 Nm system (S 450 e), 750 Nm system (S 580 e)
Gearbox
Gearbox	8-speed automatic	9G-TRONIC 9-speed automatic
Drive
Drive	M xDrive all-wheel drive	All-wheel drive (4MATIC); rear-wheel drive (S 450 e L)
Range and charging
Zero-emission range (WLTP)
Zero-emission range (WLTP)	–	60–67 miles
Battery
Battery	–	21.96 kWh
Fastest charging
Fastest charging	–	60 kW
Economy (WLTP)
Economy (WLTP)	27.7 mpg	33.7–117.8 mpg (better)
Range detail
Range detail	–	WLTP electric range 67 miles (S 450 e L) or 60 miles (S 580 e 4MATIC L); equivalent all-electric range 68 or 62 miles
Charging
Charging	–	Plug-in hybrids: 21.96 kWh usable battery; 11 kW AC (0–100% in 2.25 hours); DC up to 60 kW (10–80% in 20 minutes)
Efficiency
Efficiency	WLTP combined: 27.4–27.7 mpg	WLTP combined: 44.2 mpg (S 350 d), 33.7 mpg (S 500), 117.8 mpg and 17 kWh/100 km (S 450 e), 97.5 mpg and 17.5 kWh/100 km (S 580 e)
CO2 emissions
CO2 emissions	231–235 g/km, WLTP combined	168 g/km (S 350 d), 191 g/km (S 500), 55 g/km (S 450 e) and 65 g/km (S 580 e) weighted
Practicality
Body
Body	Saloon	Saloon
Seats
Seats	5	5
Boot
Boot	480 litres	515 litres (better)
Length
Length	4,801 mm	5,304 mm
Width
Width	1,903 mm	1,921 mm
Weight
Weight	–	From 2,244 kg
Boot
Boot	480 litres	515 litres (S 350 d), 535 litres (S 500), 350 litres (plug-in hybrids)
Towing
Towing	–	2,100 kg braked, 750 kg unbraked (not listed for the plug-in hybrids)
Size
Size	4,801 mm long, 1,903 mm wide (2,068 mm with mirrors), 1,438 mm high; 2,857 mm wheelbase; EC unladen weight including a 75 kg driver is 1,865 kg	5,304 mm long (long wheelbase), 1,921 mm wide without mirrors (2,123 mm with), 1,503 mm high; 11.7–11.9 m turning circle; kerb weight 2,244 kg (S 500) to 2,571 kg (S 580 e); 76-litre fuel tank (67 litres plug-in hybrids)
Tech and safety
Infotainment
Infotainment	–	MBUX with generative-AI MBUX Virtual Assistant