BMW 3 series is more dynamic to drive. BMW 3 series engine produces 27 HP more power than Mercedes C class, whereas torque is 70 NM more than Mercedes C class. Thanks to more power BMW 3 series reaches 100 km/h speed 1.9 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
6.7
6.5
Real fuel consumption:
7.3 l/100km
6.7 l/100km
The Mercedes C class is a better choice when it comes to fuel economy. By specification BMW 3 series consumes 0.2 litres more fuel per 100 km than the Mercedes C class, which means that if you drive 15,000 km in a year, the BMW 3 series could require 30 litres more fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 0.6 litres more fuel per 100 km than the Mercedes C class.
Fuel tank capacity:
61 litres
66 litres
Full fuel tank distance:
910 km in combined cycle
1010 km in combined cycle
1150 km on highway
1320 km on highway
830 km with real consumption
980 km with real consumption
Mercedes C class gets more mileage on one fuel tank.
Engines
Engine production duration:
9 years
8 years
Engine spread:
Used also on BMW 1 sērija
Used only for this car
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. BMW 3 series might be a better choice in this respect.
Dimensions
Length:
4.52 m
4.58 m
Width:
1.82 m
1.77 m
Height:
1.42 m
1.45 m
BMW 3 series is 6 cm shorter than the Mercedes C class, 5 cm wider, while the height of BMW 3 series is 3 cm lower.
Trunk capacity:
460 litres
475 litres
BMW 3 series has 15 litres less trunk space than the Mercedes C class.
Turning diameter:
11 meters
10.8 meters
The turning circle of the BMW 3 series is 0.2 metres more than that of the Mercedes C class.
BMW 3 series has fewer problems. According to annual technical inspection data Mercedes C class has serious deffects in 30 percent more cases than BMW 3 series, so BMW 3 series quality is probably significantly better
