1984 Ford Sierra vs. 1987 Porsche 959
To start off, 1987 Porsche 959 is newer by 3 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 2,849 cc (6 cylinders), 1987 Porsche 959 is equipped with a bigger engine. In terms of performance, 1987 Porsche 959 (450 HP @ 6500 RPM) has 290 more horse power than 1984 Ford Sierra. (160 HP @ 5700 RPM) In normal driving conditions, 1987 Porsche 959 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1987 Porsche 959 weights approximately 270 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 1987 Porsche 959 is four wheel drive (4WD), it will have significant more traction and grip than 1984 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 1987 Porsche 959 will offer significantly more control. 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 Porsche 959 (500 Nm @ 5000 RPM) has 284 more torque (in Nm) than 1984 Ford Sierra. (216 Nm @ 4300 RPM). This means 1987 Porsche 959 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1984 Ford Sierra | 1987 Porsche 959 | |
| Make | Ford | Porsche |
| Model | Sierra | 959 |
| Year Released | 1984 | 1987 |
| Engine Position | Front | Rear |
| Engine Size | 2792 cc | 2849 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 160 HP | 450 HP |
| Engine RPM | 5700 RPM | 6500 RPM |
| Torque | 216 Nm | 500 Nm |
| Torque RPM | 4300 RPM | 5000 RPM |
| Engine Bore Size | 93.1 mm | 95.1 mm |
| Engine Stroke Size | 68.5 mm | 67 mm |
| Engine Compression Ratio | 9.2:1 | 8.3:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1180 kg | 1450 kg |
| Vehicle Length | 4430 mm | 4270 mm |
| Vehicle Width | 1730 mm | 1840 mm |
| Vehicle Height | 1370 mm | 1280 mm |
| Wheelbase Size | 2610 mm | 2270 mm |
