2006 Alfa Romeo 156 vs. 2006 Opel Signum
To start off, both 2006 Alfa Romeo 156 and 2006 Opel Signum were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,998 cc (4 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (173 HP @ 5500 RPM) has 59 more horse power than 2006 Alfa Romeo 156. (114 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 2006 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 252 kg more than 2006 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 Alfa Romeo 156 (275 Nm @ 2000 RPM) has 9 more torque (in Nm) than 2006 Opel Signum. (266 Nm @ 2500 RPM). This means 2006 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 2006 Alfa Romeo 156 | 2006 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Signum |
| Year Released | 2006 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 114 HP | 173 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 275 Nm | 266 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 90.4 mm | 86 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 191 km/hour | 220 km/hour |
| Acceleration 0-100mph | 10.3 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1308 kg | 1560 kg |
| Vehicle Length | 4440 mm | 4640 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Consumption Overall | 5.8 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
