BMW 3 series engine produces 3 HP less power than Audi A4, whereas torque is 20 NM less than Audi A4.
Fuel consumption
Fuel consumption (l/100km):
6.2
5.9
Real fuel consumption:
8.7 l/100km
8.6 l/100km
By specification BMW 3 series consumes 0.3 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 45 litres more fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 0.1 litres more fuel per 100 km than the Audi A4.
BMW 3 series is smaller, but slightly higher. BMW 3 series is 9 cm shorter than the Audi A4, 3 cm narrower the height of the cars does not differ significantly.
Trunk capacity:
480 litres
481 litres
BMW 3 series has 1 litres less trunk space than the Audi A4.
Audi A4 has fewer problems. According to annual technical inspection data BMW 3 series has serious deffects in 35 percent more cases than Audi A4, so Audi A4 quality is probably significantly better
