2005 BMW 730 vs. 1981 Renault 9
To start off, 2005 BMW 730 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Renault 9. In addition, the cost of maintenance, including insurance, on 1981 Renault 9 would be higher. At 2,979 cc (6 cylinders), 2005 BMW 730 is equipped with a bigger engine. In terms of performance, 2005 BMW 730 (225 HP @ 4000 RPM) has 140 more horse power than 1981 Renault 9. (85 HP @ 5000 RPM). In normal driving conditions, 2005 BMW 730 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 1069 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, 2005 BMW 730 (500 Nm @ 2000 RPM) has 361 more torque (in Nm) than 1981 Renault 9. (139 Nm @ 3250 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 2005 BMW 730 | 1981 Renault 9 | |
| Make | BMW | Renault |
| Model | 730 | 9 |
| Year Released | 2005 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1721 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 225 HP | 85 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 500 Nm | 139 Nm |
| Torque RPM | 2000 RPM | 3250 RPM |
| Engine Bore Size | 84.1 mm | 81 mm |
| Engine Stroke Size | 90 mm | 83.5 mm |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1975 kg | 906 kg |
| Vehicle Length | 5050 mm | 4070 mm |
| Vehicle Width | 1910 mm | 1660 mm |
| Vehicle Height | 1500 mm | 1410 mm |
| Wheelbase Size | 2890 mm | 2490 mm |
