BMW 3 series is more dynamic to drive. BMW 3 series engine produces 22 HP more power than Audi A4, whereas torque is 15 NM more than Audi A4. Thanks to more power BMW 3 series reaches 100 km/h speed 0.3 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
11.0
9.3
The Audi A4 is a better choice when it comes to fuel economy. BMW 3 series consumes 1.7 litres more fuel per 100 km than the Audi A4, which means that if you drive 15,000 km in a year, the BMW 3 series could require 255 litres more fuel.
BMW 3 sērija has 4x4: 38% front and 62% rear torque distribution via planetary gears. ADB-X (Automatic Differential Brake) electronic traction control system provides differential locking functions.
Engines
Average engine lifespan:
440'000 km
480'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used, but under equal conditions the average life of a Audi A4 engine could be longer.
Engine production duration:
7 years
4 years
Engine spread:
Installed on at least 3 other car models, including BMW 5 sērija, BMW X3, BMW Z4
Used also on Audi A6
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
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 30 percent more cases than Audi A4, so Audi A4 quality is probably significantly better
