Both cars are available with petrol and diesel engines. Audi A3 is available also with hybrid engines. Hybrid engines offer superior fuel efficiency and reduced emissions compared to conventional engine types.
Audi A3 petrol engines consumes on average 1.9 litres less fuel per 100 km than Audi A4. On average, Audi A3 equipped with diesel engines consume 0.8 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!
Audi A3 is smaller. Audi A3 is 39 cm shorter than the Audi A4, 4 cm narrower the height of the cars does not differ significantly.
Trunk capacity:
380 litres
490 litres
Trunk max capacity: with rear seats folded down
1220 litres
no data
Audi A4 has more luggage space. Audi A3 has 110 litres less trunk space than the Audi A4.
Turning diameter:
10.9 meters
11.4 meters
The turning circle of the Audi A3 is 0.5 metres less than that of the Audi A4, which means Audi A3 can be easier to manoeuvre in tight streets and parking spaces.
