2002 Alfa Romeo 156 vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 6 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 2,957 cc (6 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (175 HP @ 4000 RPM) has 27 more horse power than 2002 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 2008 Opel Signum should accelerate faster than 2002 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 235 kg more than 2002 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, 2008 Opel Signum (370 Nm @ 1900 RPM) has 65 more torque (in Nm) than 2002 Alfa Romeo 156. (305 Nm @ 1800 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2002 Alfa Romeo 156. 2008 Opel Signum has automatic transmission and 2002 Alfa Romeo 156 has manual transmission. 2002 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2002 Alfa Romeo 156 | 2008 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Signum |
| Year Released | 2002 | 2008 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2385 cc | 2957 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 148 HP | 175 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 305 Nm | 370 Nm |
| Torque RPM | 1800 RPM | 1900 RPM |
| Engine Bore Size | 82 mm | 87.5 mm |
| Engine Stroke Size | 90.4 mm | 82 mm |
| Engine Compression Ratio | 18.5:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 212 km/hour | 221 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1435 kg | 1670 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 Tank Capacity | 63 L | 60 L |
