1986 Ford Sierra vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 17 year(s). Which means there will be less support and parts availability for 1986 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1986 Ford Sierra 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 86 more horse power than 1986 Ford Sierra. (89 HP @ 5400 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 561 kg more than 1986 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1986 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 1986 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 (370 Nm @ 1900 RPM) has 227 more torque (in Nm) than 1986 Ford Sierra. (143 Nm @ 3500 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra.
Compare all specifications:
| 1986 Ford Sierra | 2003 Opel Signum | |
| Make | Ford | Opel |
| Model | Sierra | Signum |
| Year Released | 1986 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 89 HP | 175 HP |
| Engine RPM | 5400 RPM | 5500 RPM |
| Torque | 143 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1014 kg | 1575 kg |
| Vehicle Length | 4400 mm | 4640 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2620 mm | 2840 mm |
