2002 Alfa Romeo 156 vs. 2001 Opel Signum
To start off, 2002 Alfa Romeo 156 is newer by 1 year(s). Which means there will be less support and parts availability for 2001 Opel Signum. In addition, the cost of maintenance, including insurance, on 2001 Opel Signum would be higher. At 2,490 cc (5 cylinders), 2002 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2002 Alfa Romeo 156 (148 HP @ 4000 RPM) has 23 more horse power than 2001 Opel Signum. (125 HP @ 3250 RPM). In normal driving conditions, 2002 Alfa Romeo 156 should accelerate faster than 2001 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Signum weights approximately 225 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, 2002 Alfa Romeo 156 (305 Nm @ 1800 RPM) has 25 more torque (in Nm) than 2001 Opel Signum. (280 Nm @ 1500 RPM). This means 2002 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2001 Opel Signum.
Compare all specifications:
| 2002 Alfa Romeo 156 | 2001 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Signum |
| Year Released | 2002 | 2001 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2490 cc | 2171 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 125 HP |
| Engine RPM | 4000 RPM | 3250 RPM |
| Torque | 305 Nm | 280 Nm |
| Torque RPM | 1800 RPM | 1500 RPM |
| Engine Compression Ratio | 18.5:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 212 km/hour | 201 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 11.2 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 | 1385 kg | 1610 kg |
| Vehicle Length | 4440 mm | 4640 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 60 L |
