The hatchback generally has more luggage space thanks to a larger trunk door opening and the ability to convert the rear of the passenger compartment into luggage space. Sedans tend to be quieter than hatchbacks, due to a more isolated rear area.
Audi A3 is a more dynamic driving. Audi A4 engine produces 3 HP more power than Audi A3, but torque is 25 NM less than Audi A3. Despite the higher power, Audi A4 reaches 100 km/h speed 0.6 seconds later.
Fuel consumption
Fuel consumption (l/100km):
8.2
7.5
The Audi A3 is a better choice when it comes to fuel economy. Audi A4 consumes 0.7 litres more fuel per 100 km than the Audi A3, which means that if you drive 15,000 km in a year, the Audi A4 could require 105 litres more fuel.
Fuel tank capacity:
70 litres
55 litres
Full fuel tank distance:
850 km in combined cycle
730 km in combined cycle
Audi A4 gets more mileage on one fuel tank.
Engines
Average engine lifespan:
460'000 km
320'000 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:
5 years
1 years
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A4 might be a better choice in this respect.
Dimensions
Length:
4.59 m
4.29 m
Width:
1.77 m
1.76 m
Height:
1.43 m
1.42 m
Audi A4 is larger. Audi A4 is 30 cm longer than the Audi A3, 1 cm wider, while the height of Audi A4 is 1 cm higher.
Trunk capacity:
460 litres
370 litres
Trunk max capacity: with rear seats folded down
720 litres
1120 litres
Audi A4 has 90 litres more trunk space than the Audi A3. The maximum boot capacity (with all rear seats folded down) is larger in Audi A3 (by 400 litres).
Turning diameter:
11.1 meters
10.7 meters
The turning circle of the Audi A4 is 0.4 metres more than that of the Audi A3, which means Audi A4 can be harder to manoeuvre in tight streets and parking spaces.
Audi A3 has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Audi A4, so Audi A3 quality could be a bit better.
