Opel Vectra is more dynamic to drive. Opel Vectra engine produces 25 HP more power than Opel Signum, whereas torque is 25 NM more than Opel Signum. Thanks to more power Opel Vectra reaches 100 km/h speed 0.9 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
10.4
10.6
Opel Vectra consumes 0.2 litres less fuel per 100 km than the Opel Signum, which means that by driving the Opel Vectra over 15,000 km in a year you can save 30 litres of fuel.
Fuel tank capacity:
61 litres
60 litres
Full fuel tank distance:
580 km in combined cycle
560 km in combined cycle
820 km on highway
780 km on highway
Dimensions
Length:
4.64 m
4.65 m
Width:
1.80 m
1.80 m
Height:
1.46 m
1.47 m
Both cars are similar in size. Opel Vectra is 1 cm shorter than the Opel Signum, width is practically the same , while the height of Opel Vectra is 1 cm lower.
Trunk capacity:
500 litres
365 litres
Trunk max capacity: with rear seats folded down
1360 litres
1410 litres
Even though the car is shorter, Opel Vectra has 135 litres more trunk space than the Opel Signum. The Opel Signum may have more interior space, so the cabin could be more spacious and more comfortable for the driver and passengers. The maximum boot capacity (with all rear seats folded down) is larger in Opel Signum (by 50 litres).
Turning diameter:
11 meters
11.4 meters
The turning circle of the Opel Vectra is 0.4 metres less than that of the Opel Signum, which means Opel Vectra can be easier to manoeuvre in tight streets and parking spaces.
