Opel Astra engine produces 3 HP more power than Opel Signum, whereas torque is 3 NM more than Opel Signum.
Fuel consumption
Fuel consumption (l/100km):
8.4
no data
Fuel tank capacity:
52 litres
60 litres
Dimensions
Length:
4.25 m
4.64 m
Width:
1.75 m
1.80 m
Height:
1.46 m
1.47 m
Opel Astra is smaller. Opel Astra is 39 cm shorter than the Opel Signum, 5 cm narrower, while the height of Opel Astra is 1 cm lower.
Trunk capacity:
380 litres
no data
Trunk max capacity: with rear seats folded down
1330 litres
1410 litres
Turning diameter:
10.5 meters
11.2 meters
The turning circle of the Opel Astra is 0.7 metres less than that of the Opel Signum, which means Opel Astra can be easier to manoeuvre in tight streets and parking spaces.
Opel Astra has fewer problems. According to annual technical inspection data Opel Signum has serious deffects in 30 percent more cases than Opel Astra, so Opel Astra quality is probably significantly better
