Mercedes B class is more dynamic to drive. Mercedes B class engine produces 13 HP more power than Audi A3, whereas torque is 7 NM more than Audi A3. Thanks to more power Mercedes B class reaches 100 km/h speed 0.8 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
no data
6.9
Fuel tank capacity:
54 litres
55 litres
690 km with real consumption
720 km with real consumption
Dimensions
Length:
4.27 m
4.29 m
Width:
1.78 m
1.76 m
Height:
1.60 m
1.42 m
Mercedes B class is 2 cm shorter than the Audi A3, 2 cm wider, while the height of Mercedes B class is 18 cm higher.
Trunk capacity:
544 litres
370 litres
Trunk max capacity: with rear seats folded down
no data
1104 litres
Mercedes B class has more luggage capacity. Even though the car is shorter, Mercedes B class has 174 litres more trunk space than the Audi A3. The Audi A3 may have more interior space, so the cabin could be more spacious and more comfortable for the driver and passengers.
Turning diameter:
11.9 meters
10.7 meters
The turning circle of the Mercedes B class is 1.2 metres more than that of the Audi A3, which means Mercedes B class can be harder to manoeuvre in tight streets and parking spaces.
Audi A3 has fewer problems. According to annual technical inspection data Mercedes B class has serious deffects in 20 percent more cases than Audi A3, so Audi A3 quality is probably better