2002 Alfa Romeo 156 vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 4 year(s). Which means there will be less support and parts availability for 2002 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2002 Alfa Romeo 156 would be higher. At 1,910 cc (4 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2002 Alfa Romeo 156 (138 HP @ 6500 RPM) has 20 more horse power than 2006 Opel Signum. (118 HP @ 4000 RPM). In normal driving conditions, 2002 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 223 kg more than 2002 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 (281 Nm @ 2000 RPM) has 118 more torque (in Nm) than 2002 Alfa Romeo 156. (163 Nm @ 3900 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2002 Alfa Romeo 156.
Compare all specifications:
| 2002 Alfa Romeo 156 | 2006 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Signum |
| Year Released | 2002 | 2006 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 1910 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 138 HP | 118 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 163 Nm | 281 Nm |
| Torque RPM | 3900 RPM | 2000 RPM |
| Engine Bore Size | 82 mm | 82 mm |
| Engine Stroke Size | 82.7 mm | 90.4 mm |
| Top Speed | 208 km/hour | 191 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1392 kg | 1615 kg |
| Vehicle Length | 4450 mm | 4640 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 60 L |
