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:
Manual/Automatic
Manual/Automatic
Wheel drive type:
Front wheel drive (FWD)
Front wheel drive (FWD) / All wheel drive (AWD, 4x4)
Opel Signum is available only with front wheel drive, while Audi A4 can be equipped with front wheel drive and four wheel (4x4) drive.
Opel Signum petrol engines consumes on average 0.4 litres more fuel per 100 km than Audi A4. On average, Opel Signum equipped with diesel engines consume 0.4 litres more fuel per 100 km than the Audi A4. This comparison does not take engine capacity into account, so to compare the fuel consumption of specific engines, select the car version!
Dimensions
Length:
4.64 m
4.55 m
Width:
1.80 m
1.77 m
Height:
1.47 m
1.43 m
Opel Signum is larger. Opel Signum is 9 cm longer than the Audi A4, 3 cm wider, while the height of Opel Signum is 4 cm higher.
Trunk capacity:
875 litres
445 litres
Trunk max capacity: with rear seats folded down
1410 litres
no data
Opel Signum has more luggage capacity. Opel Signum has 430 litres more trunk space than the Audi A4.
Turning diameter:
11.2 meters
11.1 meters
The turning circle of the Opel Signum is 0.1 metres more than that of the Audi A4.
