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
Manual
Engine:
2.0 Diesel
1.9 Diesel
Performance
Power:
101 HP
100 HP
Torque:
230 NM
250 NM
Acceleration 0-100 km/h:
14 seconds
12.1 seconds
Audi A4 is a more dynamic driving. Opel Signum engine produces 1 HP more power than Audi A4, but torque is 20 NM less than Audi A4. Despite the higher power, Opel Signum reaches 100 km/h speed 1.9 seconds later.
Fuel consumption
Fuel consumption (l/100km):
5.9
5.4
The Audi A4 is a better choice when it comes to fuel economy. Opel Signum consumes 0.5 litres more fuel per 100 km than the Audi A4, which means that if you drive 15,000 km in a year, the Opel Signum could require 75 litres more fuel.
Fuel tank capacity:
60 litres
70 litres
Full fuel tank distance:
1010 km in combined cycle
1290 km in combined cycle
1250 km on highway
1550 km on highway
Audi A4 gets more mileage on one fuel tank.
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:
365 litres
445 litres
Trunk max capacity: with rear seats folded down
1410 litres
no data
Audi A4 has more luggage space. Despite its longer length, Opel Signum has 80 litres less trunk space than the Audi A4. This could mean that the Opel Signum uses more space in the cabin, so the driver and passengers could be more spacious and comfortable.
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.
Audi A4 has fewer problems. According to annual technical inspection data Opel Signum has serious deffects in 55 percent more cases than Audi A4, so Audi A4 quality is probably significantly better
