1984 Ford Sierra vs. 1981 Porsche 928
To start off, 1984 Ford Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 1981 Porsche 928. In addition, the cost of maintenance, including insurance, on 1981 Porsche 928 would be higher. At 4,472 cc (8 cylinders), 1981 Porsche 928 is equipped with a bigger engine. In terms of performance, 1981 Porsche 928 (238 HP @ 5250 RPM) has 132 more horse power than 1984 Ford Sierra. (106 HP @ 5200 RPM) In normal driving conditions, 1981 Porsche 928 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1981 Porsche 928 weights approximately 302 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1981 Porsche 928 (356 Nm @ 3600 RPM) has 199 more torque (in Nm) than 1984 Ford Sierra. (157 Nm @ 4000 RPM). This means 1981 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1984 Ford Sierra | 1981 Porsche 928 | |
| Make | Ford | Porsche |
| Model | Sierra | 928 |
| Year Released | 1984 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 4472 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 106 HP | 238 HP |
| Engine RPM | 5200 RPM | 5250 RPM |
| Torque | 157 Nm | 356 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 90.8 mm | 95 mm |
| Engine Stroke Size | 77 mm | 78.9 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1148 kg | 1450 kg |
| Vehicle Length | 4430 mm | 4450 mm |
| Vehicle Width | 1730 mm | 1840 mm |
| Vehicle Height | 1420 mm | 1320 mm |
| Wheelbase Size | 2610 mm | 2510 mm |
| Fuel Tank Capacity | 60 L | 85 L |
