Alfa Romeo 156 petrol engines consumes on average 1.1 litres more fuel per 100 km than Opel Astra. On average, Alfa Romeo 156 equipped with diesel engines consume 0.5 litres more fuel per 100 km than the Opel Astra. This comparison does not take engine capacity into account, so to compare the fuel consumption of specific engines, select the car version!
Alfa Romeo 156 is larger, but lower. Alfa Romeo 156 is 14 cm longer than the Opel Astra, 3 cm wider, while the height of Alfa Romeo 156 is 9 cm lower.
Trunk capacity:
360 litres
480 litres
Trunk max capacity: with rear seats folded down
1180 litres
1500 litres
Opel Astra has more luggage space. Despite its longer length, Alfa Romeo 156 has 120 litres less trunk space than the Opel Astra. This could mean that the Alfa Romeo 156 uses more space in the cabin, so the driver and passengers could be more spacious and comfortable. The maximum boot capacity (with all rear seats folded down) is larger in Opel Astra (by 320 litres).
Turning diameter:
11.6 meters
10.8 meters
The turning circle of the Alfa Romeo 156 is 0.8 metres more than that of the Opel Astra, which means Alfa Romeo 156 can be harder to manoeuvre in tight streets and parking spaces.