Audi A3 2008 vs Audi A4 2008

Audi A3
2008 - 2013
Audi A4
2008 - 2011
Body: HatchbackSedan
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.
Gearbox: AutomaticAutomatic
Engine: 1.6 Petrol1.8 Petrol
Camshaft drive: Timing beltTiming chain
Timing belt usually needs to be replaced more often than the chain, but it is usually significantly cheaper. Timing belt motors are generally quieter and less vibrating than chain motors.


Power: 102 HP160 HP
Torque: 148 NM250 NM
Acceleration 0-100 km/h: 12 seconds8.6 seconds
Audi A4 is a more dynamic driving.
Audi A3 engine produces 58 HP less power than Audi A4, whereas torque is 102 NM less than Audi A4. Due to the lower power, Audi A3 reaches 100 km/h speed 3.4 seconds later.

Fuel consumption

Fuel consumption (l/100km): 6.77.4
Real fuel consumption: 8.3 l/100km8.9 l/100km
The Audi A3 is a better choice when it comes to fuel economy.
By specification Audi A3 consumes 0.7 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 105 litres of fuel.
By comparing actual fuel consumption based on user reports, Audi A3 consumes 0.6 litres less fuel per 100 km than the Audi A4.
Fuel tank capacity: 55 litres65 litres
Full fuel tank distance: 820 km in combined cycle870 km in combined cycle
1070 km on highway1140 km on highway
660 km with real consumption730 km with real consumption
Audi A4 gets more mileage on one fuel tank.


Average engine lifespan: 480'000 km350'000 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 A3 engine could be longer.
Engine production duration: 10 years5 years
Engine spread: Installed on at least 5 other car models, including Volkswagen Passat, Volkswagen Golf, Volkswagen TouranUsed also on Audi TT
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A3 might be a better choice in this respect.


Length: 4.29 m4.70 m
Width: 1.76 m1.83 m
Height: 1.42 m1.43 m
Audi A3 is smaller.
Audi A3 is 41 cm shorter than the Audi A4, 7 cm narrower, while the height of Audi A3 is 1 cm lower.
Trunk capacity: 370 litres480 litres
Trunk max capacity:
with rear seats folded down
1104 litresno data
Audi A4 has more luggage space.
Audi A3 has 110 litres less trunk space than the Audi A4.
Turning diameter: 10.7 meters11.4 meters
The turning circle of the Audi A3 is 0.7 metres less than that of the Audi A4, which means Audi A3 can be easier to manoeuvre in tight streets and parking spaces.
Gross weight (kg): 1`8202`000

above average
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.
Average price (€): 64005400
Pros and Cons: Audi A3 has
  • timing belt engine
  • lower fuel consumption
  • longer expected engine lifespan
  • better manoeuvrability
Audi A4 has
  • timing chain engine
  • more power
  • more dynamic
  • more full fuel tank mileage
  • roomier boot
  • lower price
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