1987 Ford Sierra vs. 2002 Opel Signum
To start off, 2002 Opel Signum is newer by 15 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 1,997 cc (4 cylinders), 2002 Opel Signum is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (204 HP @ 6250 RPM) has 56 more horse power than 2002 Opel Signum. (148 HP @ 4000 RPM). In normal driving conditions, 1987 Ford Sierra should accelerate faster than 2002 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Signum weights approximately 130 kg more than 1987 Ford Sierra.
Because 1987 Ford Sierra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1987 Ford Sierra. However, in wet, icy, snow, or gravel driving conditions, 2002 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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 Opel Signum (315 Nm @ 2000 RPM) has 38 more torque (in Nm) than 1987 Ford Sierra. (277 Nm @ 4500 RPM). This means 2002 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 2002 Opel Signum | |
| Make | Ford | Opel |
| Model | Sierra | Signum |
| Year Released | 1987 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 204 HP | 148 HP |
| Engine RPM | 6250 RPM | 4000 RPM |
| Torque | 277 Nm | 315 Nm |
| Torque RPM | 4500 RPM | 2000 RPM |
| Engine Bore Size | 90.8 mm | 82 mm |
| Engine Stroke Size | 77 mm | 90.4 mm |
| Engine Compression Ratio | 8.0:1 | 18.0:1 |
| Top Speed | 240 km/hour | 209 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1250 kg | 1380 kg |
| Vehicle Length | 4470 mm | 4640 mm |
| Vehicle Width | 1710 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2500 mm | 2640 mm |
