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 and Audi A4 have the same engine power, the torque is the same for both cars.
Fuel consumption
Fuel consumption (l/100km):
5.5
5.7
Real fuel consumption:
6.0 l/100km
6.8 l/100km
The Audi A3 is a better choice when it comes to fuel economy. By specification Audi A3 consumes 0.2 litres less fuel per 100 km than the Audi A4, which means that by driving the Audi A3 over 15,000 km in a year you can save 30 litres of fuel. By comparing actual fuel consumption based on user reports, Audi A3 consumes 0.8 litres less fuel per 100 km than the Audi A4.
Fuel tank capacity:
55 litres
70 litres
Full fuel tank distance:
1000 km in combined cycle
1220 km in combined cycle
1190 km on highway
1550 km on highway
910 km with real consumption
1020 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:
4.29 m
4.59 m
Width:
1.76 m
1.77 m
Height:
1.42 m
1.43 m
Audi A3 is smaller. Audi A3 is 30 cm shorter than the Audi A4, 1 cm narrower, while the height of Audi A3 is 1 cm lower.
Trunk capacity:
370 litres
460 litres
Trunk max capacity: with rear seats folded down
1120 litres
833 litres
Audi A3 has 90 litres less trunk space than the Audi A4. The maximum boot capacity (with all rear seats folded down) is larger in Audi A3 (by 287 litres).
Turning diameter:
10.7 meters
11.1 meters
The turning circle of the Audi A3 is 0.4 metres less than that of the Audi A4, which means Audi A3 can be easier 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.
