1957 BMW 501 vs. 1981 Renault 9
To start off, 1981 Renault 9 is newer by 24 year(s). Which means there will be less support and parts availability for 1957 BMW 501. In addition, the cost of maintenance, including insurance, on 1957 BMW 501 would be higher. At 3,168 cc (8 cylinders), 1957 BMW 501 is equipped with a bigger engine. In terms of performance, 1957 BMW 501 (138 HP @ 4800 RPM) has 84 more horse power than 1981 Renault 9. (54 HP @ 4800 RPM). In normal driving conditions, 1957 BMW 501 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 1957 BMW 501 weights approximately 490 kg more than 1981 Renault 9. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1957 BMW 501 (223 Nm @ 2500 RPM) has 119 more torque (in Nm) than 1981 Renault 9. (104 Nm @ 2250 RPM). This means 1957 BMW 501 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1957 BMW 501 | 1981 Renault 9 | |
| Make | BMW | Renault |
| Model | 501 | 9 |
| Year Released | 1957 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 1595 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 138 HP | 54 HP |
| Engine RPM | 4800 RPM | 4800 RPM |
| Torque | 223 Nm | 104 Nm |
| Torque RPM | 2500 RPM | 2250 RPM |
| Engine Bore Size | 82 mm | 78 mm |
| Engine Stroke Size | 75 mm | 83.5 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1405 kg | 915 kg |
| Vehicle Length | 4740 mm | 4070 mm |
| Vehicle Width | 1790 mm | 1660 mm |
| Vehicle Height | 1540 mm | 1410 mm |
| Wheelbase Size | 2840 mm | 2490 mm |
