Hybrid engines (Audi A3) offer better fuel economy and lower emissions than petrol engines, especially in city driving with frequent stops. Petrol (Audi A4) engines, however, are typically less expensive to buy and maintain, and offer more consistent performance on highways.
Performance
Power:
150 HP
170 HP
Torque:
250 NM
320 NM
Acceleration 0-100 km/h:
7.6 seconds
8.4 seconds
Audi A3 engine produces 20 HP less power than Audi A4, whereas torque is 70 NM less than Audi A4. Despite less power, Audi A3 reaches 100 km/h speed 0.8 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
1.5
6.0
The Audi A3 is a better choice when it comes to fuel economy. Audi A3 consumes 4.5 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 675 litres of fuel.
Audi A3 is smaller. Audi A3 is 39 cm shorter than the Audi A4, 4 cm narrower, while the height of Audi A3 is 1 cm lower.
Trunk capacity:
280 litres
490 litres
Trunk max capacity: with rear seats folded down
1120 litres
no data
Audi A4 has more luggage space. Audi A3 has 210 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.
Audi A3 has fewer problems. According to annual technical inspection data Audi A4 has serious deffects in 10 percent more cases than Audi A3, so Audi A3 quality is probably slightly better
