1991 BMW 525 vs. 1987 Ford Sierra
To start off, 1991 BMW 525 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 2,496 cc (6 cylinders), 1991 BMW 525 is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (204 HP @ 6250 RPM) has 61 more horse power than 1991 BMW 525. (143 HP @ 4800 RPM) In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1991 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 525 weights approximately 310 kg more than 1987 Ford Sierra.
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, 1987 Ford Sierra (277 Nm @ 4500 RPM) has 17 more torque (in Nm) than 1991 BMW 525. (260 Nm @ 2200 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 525.
Compare all specifications:
| 1991 BMW 525 | 1987 Ford Sierra | |
| Make | BMW | Ford |
| Model | 525 | Sierra |
| Year Released | 1991 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 143 HP | 204 HP |
| Engine RPM | 4800 RPM | 6250 RPM |
| Torque | 260 Nm | 277 Nm |
| Torque RPM | 2200 RPM | 4500 RPM |
| Engine Bore Size | 80 mm | 90.8 mm |
| Engine Stroke Size | 83 mm | 77 mm |
| Engine Compression Ratio | 22.0:1 | 8.0:1 |
| Top Speed | 199 km/hour | 240 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1250 kg |
| Vehicle Length | 4730 mm | 4470 mm |
| Vehicle Width | 1760 mm | 1710 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2770 mm | 2500 mm |
