1984 Ford Sierra vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 19 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra would be higher. At 2,294 cc (6 cylinders), 1984 Ford Sierra is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (173 HP @ 5600 RPM) has 59 more horse power than 1984 Ford Sierra. (114 HP @ 5300 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 380 kg more than 1984 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1984 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 1984 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 (280 Nm @ 2500 RPM) has 104 more torque (in Nm) than 1984 Ford Sierra. (176 Nm @ 3000 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1984 Ford Sierra | 2003 Opel Signum | |
| Make | Ford | Opel |
| Model | Sierra | Signum |
| Year Released | 1984 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2294 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 114 HP | 173 HP |
| Engine RPM | 5300 RPM | 5600 RPM |
| Torque | 176 Nm | 280 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 90 mm | 86 mm |
| Engine Stroke Size | 60.1 mm | 86 mm |
| Engine Compression Ratio | 9.0:1 | 9.5:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1115 kg | 1495 kg |
| Vehicle Length | 4420 mm | 4640 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2720 mm |
| Fuel Tank Capacity | 60 L | 58 L |
