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.
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