1975 BMW 320 vs. 1987 Ford Sierra
To start off, 1987 Ford Sierra is newer by 12 year(s). Which means there will be less support and parts availability for 1975 BMW 320. In addition, the cost of maintenance, including insurance, on 1975 BMW 320 would be higher. At 2,292 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1975 BMW 320 (128 HP @ 6000 RPM) has 16 more horse power than 1987 Ford Sierra. (112 HP @ 5300 RPM). In normal driving conditions, 1975 BMW 320 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 85 kg more than 1975 BMW 320.
Let's talk about torque, 1987 Ford Sierra (180 Nm @ 3000 RPM) has 6 more torque (in Nm) than 1975 BMW 320. (174 Nm @ 4000 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 320.
Compare all specifications:
| 1975 BMW 320 | 1987 Ford Sierra | |
| Make | BMW | Ford |
| Model | 320 | Sierra |
| Year Released | 1975 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2292 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 128 HP | 112 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 174 Nm | 180 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 96 mm |
| Engine Stroke Size | 66 mm | 79.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1050 kg | 1135 kg |
| Vehicle Length | 4330 mm | 4500 mm |
| Vehicle Width | 1650 mm | 1680 mm |
| Vehicle Height | 1390 mm | 1400 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
