2003 Alfa Romeo 156 vs. 1999 Opel Signum
To start off, 2003 Alfa Romeo 156 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,492 cc (5 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (172 HP @ 4000 RPM) has 19 more horse power than 1999 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 150 kg more than 2003 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, 2003 Alfa Romeo 156 (385 Nm @ 2000 RPM) has 164 more torque (in Nm) than 1999 Opel Signum. (221 Nm @ 3800 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum.
Compare all specifications:
| 2003 Alfa Romeo 156 | 1999 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Signum |
| Year Released | 2003 | 1999 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2198 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 172 HP | 153 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 385 Nm | 221 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Acceleration 0-100mph | 8.3 seconds | 9.8 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 | 1535 kg |
| Vehicle Length | 4440 mm | 4640 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2640 mm |
| Fuel Tank Capacity | 63 L | 60 L |
