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 A4 and Audi A3 have the same engine power, the torque is the same for both cars.
Fuel consumption
Fuel consumption (l/100km):
5.7
5.5
Real fuel consumption:
6.8 l/100km
6.0 l/100km
The Audi A3 is a better choice when it comes to fuel economy. By specification Audi A4 consumes 0.2 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 30 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A4 consumes 0.8 litres more fuel per 100 km than the Audi A3.
Fuel tank capacity:
70 litres
55 litres
Full fuel tank distance:
1220 km in combined cycle
1000 km in combined cycle
1550 km on highway
1190 km on highway
1020 km with real consumption
910 km with real consumption
Audi A4 gets more mileage on one fuel tank.
Engines
Average engine lifespan:
420'000 km
420'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
5 years
5 years
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
833 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 287 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.
