BMW 3 series is more dynamic to drive. BMW 3 series engine produces 11 HP more power than Audi A4, the torque is the same for both cars. Thanks to more power BMW 3 series reaches 100 km/h speed 0.4 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
9.1
9.5
Real fuel consumption:
9.9 l/100km
10.5 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification BMW 3 series consumes 0.4 litres less fuel per 100 km than the Audi A4, which means that by driving the BMW 3 series over 15,000 km in a year you can save 60 litres of fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 0.6 litres less fuel per 100 km than the Audi A4.
Fuel tank capacity:
63 litres
70 litres
Full fuel tank distance:
690 km in combined cycle
730 km in combined cycle
910 km on highway
980 km on highway
630 km with real consumption
660 km with real consumption
Audi A4 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
Rear wheel drive (RWD)
Front wheel drive (FWD)
Engines
Average engine lifespan:
460'000 km
480'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
7 years
5 years
Engine spread:
Installed on at least 6 other car models, including BMW 5 sērija, BMW X5, BMW 7 sērija, BMW X3, BMW Z4
Installed on at least 2 other car models, including Audi A6, Audi A8
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:
4.47 m
4.55 m
Width:
1.74 m
1.77 m
Height:
1.42 m
1.43 m
Both cars are similar in size. BMW 3 series is 8 cm shorter than the Audi A4, 3 cm narrower, while the height of BMW 3 series is 1 cm lower.
Trunk capacity:
440 litres
445 litres
BMW 3 series has 5 litres less trunk space than the Audi A4.
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.
Audi A4 has fewer problems. According to annual technical inspection data BMW 3 series has serious deffects in 20 percent more cases than Audi A4, so Audi A4 quality is probably better
