1994 BMW 518 vs. 1981 Renault 9
To start off, 1994 BMW 518 is newer by 13 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 1,794 cc (4 cylinders), 1994 BMW 518 is equipped with a bigger engine. In terms of performance, 1994 BMW 518 (114 HP @ 5500 RPM) has 60 more horse power than 1981 Renault 9. (54 HP @ 4800 RPM). In normal driving conditions, 1994 BMW 518 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 1994 BMW 518 weights approximately 245 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, 1994 BMW 518 (161 Nm @ 4250 RPM) has 57 more torque (in Nm) than 1981 Renault 9. (104 Nm @ 2250 RPM). This means 1994 BMW 518 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1994 BMW 518 | 1981 Renault 9 | |
| Make | BMW | Renault |
| Model | 518 | 9 |
| Year Released | 1994 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1794 cc | 1595 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 54 HP |
| Engine RPM | 5500 RPM | 4800 RPM |
| Torque | 161 Nm | 104 Nm |
| Torque RPM | 4250 RPM | 2250 RPM |
| Engine Bore Size | 84 mm | 78 mm |
| Engine Stroke Size | 81 mm | 83.5 mm |
| Engine Compression Ratio | 8.8:1 | 22.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 915 kg |
| Vehicle Length | 4730 mm | 4070 mm |
| Vehicle Width | 1760 mm | 1660 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2770 mm | 2490 mm |
