BMW 3 series petrol engines consumes on average 0.8 litres less fuel per 100 km than Audi A4. On average, BMW 3 series equipped with diesel engines consume 0.3 litres less fuel per 100 km than the Audi A4. This comparison does not take engine capacity into account, so to compare the fuel consumption of specific engines, select the car version!
Dimensions
Length:
4.21 m
4.48 m
Width:
1.70 m
1.73 m
Height:
1.39 m
1.42 m
BMW 3 series is smaller. BMW 3 series is 27 cm shorter than the Audi A4, 3 cm narrower, while the height of BMW 3 series is 3 cm lower.
Trunk capacity:
325 litres
390 litres
Trunk max capacity: with rear seats folded down
1030 litres
1270 litres
Audi A4 has more luggage space. BMW 3 series has 65 litres less trunk space than the Audi A4. The maximum boot capacity (with all rear seats folded down) is larger in Audi A4 (by 240 litres).
Turning diameter:
10 meters
11.1 meters
The turning circle of the BMW 3 series is 1.1 metres less than that of the Audi A4, which means BMW 3 series can be easier to manoeuvre in tight streets and parking spaces.
