1984 Ford Sierra vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra 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 1,995 cc (4 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (175 HP @ 5400 RPM) has 100 more horse power than 1984 Ford Sierra. (75 HP @ 4800 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 460 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 Vectra, 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 Vectra (270 Nm @ 2500 RPM) has 147 more torque (in Nm) than 1984 Ford Sierra. (123 Nm @ 2900 RPM). This means 2003 Opel Vectra 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 Vectra | |
| Make | Ford | Opel |
| Model | Sierra | Vectra |
| Year Released | 1984 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1593 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 175 HP |
| Engine RPM | 4800 RPM | 5400 RPM |
| Torque | 123 Nm | 270 Nm |
| Torque RPM | 2900 RPM | 2500 RPM |
| Engine Bore Size | 87.7 mm | 86 mm |
| Engine Stroke Size | 66 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 9.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1040 kg | 1500 kg |
| Vehicle Length | 4430 mm | 4830 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1510 mm |
