1987 Ford Sierra 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 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 3,173 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (207 HP @ 6200 RPM) has 141 more horse power than 1987 Ford Sierra. (66 HP @ 4200 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 443 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 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, 2003 Opel Signum (300 Nm @ 4000 RPM) has 158 more torque (in Nm) than 1987 Ford Sierra. (142 Nm @ 2000 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra. 2003 Opel Signum has automatic transmission and 1987 Ford Sierra has manual transmission. 1987 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 Ford Sierra | 2003 Opel Signum | |
| Make | Ford | Opel |
| Model | Sierra | Signum |
| Year Released | 1987 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2303 cc | 3173 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 66 HP | 207 HP |
| Engine RPM | 4200 RPM | 6200 RPM |
| Torque | 142 Nm | 300 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1170 kg | 1613 kg |
| Vehicle Length | 4430 mm | 4640 mm |
| Vehicle Width | 1700 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2620 mm | 2840 mm |
