2006 Alfa Romeo 159 vs. 2002 Opel Signum
To start off, 2006 Alfa Romeo 159 is newer by 4 year(s). Which means there will be less support and parts availability for 2002 Opel Signum. In addition, the cost of maintenance, including insurance, on 2002 Opel Signum would be higher. At 1,995 cc (4 cylinders), 2002 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 159 (118 HP @ 4000 RPM) has 18 more horse power than 2002 Opel Signum. (100 HP @ 3120 RPM). In normal driving conditions, 2006 Alfa Romeo 159 should accelerate faster than 2002 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 159 weights approximately 7 kg more than 2002 Opel Signum. 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 159 (280 Nm @ 2000 RPM) has 50 more torque (in Nm) than 2002 Opel Signum. (230 Nm @ 1500 RPM). This means 2006 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Signum.
Compare all specifications:
| 2006 Alfa Romeo 159 | 2002 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 159 | Signum |
| Year Released | 2006 | 2002 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 118 HP | 100 HP |
| Engine RPM | 4000 RPM | 3120 RPM |
| Torque | 280 Nm | 230 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Bore Size | 82 mm | 84 mm |
| Engine Stroke Size | 90.4 mm | 90 mm |
| Engine Compression Ratio | 18.0:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 191 km/hour | 185 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1602 kg | 1595 kg |
| Vehicle Length | 4670 mm | 4640 mm |
| Vehicle Width | 1830 mm | 1720 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2610 mm |
| Fuel Consumption Overall | 6 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
