Citroen C5 petrol engines consumes on average 0.2 litres more fuel per 100 km than Opel Vectra. On average, a Citroen C5 with diesel engines consumes about the same amount of fuel per 100 km as a Opel Vectra. This comparison does not take engine capacity into account, so to compare the fuel consumption of specific engines, select the car version!
Citroen C5 is 15 cm longer than the Opel Vectra, 3 cm narrower, while the height of Citroen C5 is 6 cm higher.
Trunk capacity:
563 litres
500 litres
Trunk max capacity: with rear seats folded down
1658 litres
1360 litres
Citroen C5 has more luggage capacity. Citroen C5 has 63 litres more trunk space than the Opel Vectra. The maximum boot capacity (with all rear seats folded down) is larger in Citroen C5 (by 298 litres).
Turning diameter:
12.5 meters
11 meters
The turning circle of the Citroen C5 is 1.5 metres more than that of the Opel Vectra, which means Citroen C5 can be harder to manoeuvre in tight streets and parking spaces.