1987 Alfa Romeo 164 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 16 year(s). Which means there will be less support and parts availability for 1987 Alfa Romeo 164. In addition, the cost of maintenance, including insurance, on 1987 Alfa Romeo 164 would be higher. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (175 HP @ 5500 RPM) has 52 more horse power than 1987 Alfa Romeo 164. (123 HP @ 4200 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 1987 Alfa Romeo 164. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 85 kg more than 1987 Alfa Romeo 164. 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 76 more torque (in Nm) than 1987 Alfa Romeo 164. (294 Nm @ 2000 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1987 Alfa Romeo 164.
Compare all specifications:
| 1987 Alfa Romeo 164 | 2003 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 164 | Signum |
| Year Released | 1987 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 175 HP |
| Engine RPM | 4200 RPM | 5500 RPM |
| Torque | 294 Nm | 370 Nm |
| Torque RPM | 2000 RPM | 1900 RPM |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1490 kg | 1575 kg |
| Vehicle Length | 4670 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2670 mm | 2840 mm |
