1983 BMW 525 vs. 1987 Ford Sierra
To start off, 1987 Ford Sierra is newer by 4 year(s). Which means there will be less support and parts availability for 1983 BMW 525. In addition, the cost of maintenance, including insurance, on 1983 BMW 525 would be higher. At 2,691 cc (6 cylinders), 1983 BMW 525 is equipped with a bigger engine. In terms of performance, 1983 BMW 525 (123 HP @ 4250 RPM) has 11 more horse power than 1987 Ford Sierra. (112 HP @ 5300 RPM). In normal driving conditions, 1983 BMW 525 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1983 BMW 525 weights approximately 365 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1983 BMW 525 (240 Nm @ 3250 RPM) has 60 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 1983 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1983 BMW 525 | 1987 Ford Sierra | |
| Make | BMW | Ford |
| Model | 525 | Sierra |
| Year Released | 1983 | 1987 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2691 cc | 2292 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 112 HP |
| Engine RPM | 4250 RPM | 5300 RPM |
| Torque | 240 Nm | 180 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 84 mm | 96 mm |
| Engine Stroke Size | 81 mm | 79.5 mm |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1500 kg | 1135 kg |
| Vehicle Length | 4630 mm | 4500 mm |
| Vehicle Width | 1710 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
