BMW 5 series and BMW 3 series have the same engine power, the torque is the same for both cars. BMW 5 series reaches 100 km/h speed 0.6 seconds later.
Fuel consumption
Fuel consumption (l/100km):
7.7
7.2
Real fuel consumption:
9.7 l/100km
9.1 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification BMW 5 series consumes 0.5 litres more fuel per 100 km than the BMW 3 series, which means that if you drive 15,000 km in a year, the BMW 5 series could require 75 litres more fuel. By comparing actual fuel consumption based on user reports, BMW 5 series consumes 0.6 litres more fuel per 100 km than the BMW 3 series.
Fuel tank capacity:
70 litres
63 litres
Full fuel tank distance:
900 km in combined cycle
870 km in combined cycle
1160 km on highway
1100 km on highway
720 km with real consumption
690 km with real consumption
Engines
Average engine lifespan:
350'000 km
350'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
7 years
7 years
Dimensions
Length:
4.84 m
4.53 m
Width:
1.85 m
1.82 m
Height:
1.49 m
1.44 m
BMW 5 series is larger. BMW 5 series is 31 cm longer than the BMW 3 series, 3 cm wider, while the height of BMW 5 series is 5 cm higher.
Trunk capacity:
500 litres
460 litres
BMW 5 series has more luggage capacity. BMW 5 series has 40 litres more trunk space than the BMW 3 series.
BMW 5 series has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for BMW 3 series, so BMW 5 series quality could be a bit better.