1987 Ford Sierra vs. 1991 Opel Astra
To start off, 1991 Opel Astra is newer by 4 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 1,598 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (74 HP @ 4900 RPM) has 15 more horse power than 1991 Opel Astra. (59 HP @ 5200 RPM). In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 60 kg more than 1991 Opel Astra. 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, 1991 Opel Astra, 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, 1987 Ford Sierra (123 Nm @ 2900 RPM) has 19 more torque (in Nm) than 1991 Opel Astra. (104 Nm @ 2800 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1987 Ford Sierra | 1991 Opel Astra | |
| Make | Ford | Opel |
| Model | Sierra | Astra |
| Year Released | 1987 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1389 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 59 HP |
| Engine RPM | 4900 RPM | 5200 RPM |
| Torque | 123 Nm | 104 Nm |
| Torque RPM | 2900 RPM | 2800 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1020 kg | 960 kg |
| Vehicle Length | 4430 mm | 4250 mm |
| Vehicle Width | 1700 mm | 1690 mm |
| Vehicle Height | 1370 mm | 1430 mm |
| Wheelbase Size | 2620 mm | 2610 mm |
