2003 Alfa Romeo 156 vs. 2006 Opel Signum

To start off, 2006 Opel Signum is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 2,387 cc (6 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (189 HP @ 6300 RPM) has 16 more horse power than 2006 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 50 kg more than 2003 Alfa Romeo 156.

Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Opel Signum (266 Nm @ 2500 RPM) has 48 more torque (in Nm) than 2003 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156. 2003 Alfa Romeo 156 has automatic transmission and 2006 Opel Signum has manual transmission. 2006 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 156 will be easier to drive especially in heavy traffic.

Compare all specifications:

2003 Alfa Romeo 156 2006 Opel Signum
Make Alfa Romeo Opel
Model 156 Signum
Year Released 2003 2006
Body Type Station Wagon Hatchback
Engine Position Front Front
Engine Size 2387 cc 1998 cc
Engine Cylinders 6 cylinders 4 cylinders
Engine Type V in-line
Valves per Cylinder 4 valves 4 valves
Horse Power 189 HP 173 HP
Engine RPM 6300 RPM 5500 RPM
Torque 218 Nm 266 Nm
Torque RPM 5000 RPM 2500 RPM
Engine Bore Size 88 mm 86 mm
Engine Stroke Size 68.3 mm 86 mm
Top Speed 227 km/hour 220 km/hour
Acceleration 0-100mph 8.8 seconds 9.4 seconds
Drive Type Front Front
Transmission Type Automatic Manual
Number of Seats 5 seats 5 seats
Number of Doors 5 doors 5 doors
Vehicle Weight 1510 kg 1560 kg
Vehicle Length 4450 mm 4640 mm
Vehicle Width 1750 mm 1800 mm
Vehicle Height 1440 mm 1470 mm
Wheelbase Size 2550 mm 2840 mm
Fuel Consumption Overall 11.9 L/100km 9.2 L/100km
Fuel Tank Capacity 63 L 60 L


 

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