1986 BMW 735 vs. 1981 Renault 9
To start off, 1986 BMW 735 is newer by 5 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 3,430 cc (6 cylinders), 1986 BMW 735 is equipped with a bigger engine. In terms of performance, 1986 BMW 735 (220 HP @ 5700 RPM) has 166 more horse power than 1981 Renault 9. (54 HP @ 4800 RPM). In normal driving conditions, 1986 BMW 735 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 1986 BMW 735 weights approximately 675 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, 1986 BMW 735 (315 Nm @ 4000 RPM) has 211 more torque (in Nm) than 1981 Renault 9. (104 Nm @ 2250 RPM). This means 1986 BMW 735 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1986 BMW 735 | 1981 Renault 9 | |
| Make | BMW | Renault |
| Model | 735 | 9 |
| Year Released | 1986 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 1595 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 220 HP | 54 HP |
| Engine RPM | 5700 RPM | 4800 RPM |
| Torque | 315 Nm | 104 Nm |
| Torque RPM | 4000 RPM | 2250 RPM |
| Engine Bore Size | 92 mm | 78 mm |
| Engine Stroke Size | 86 mm | 83.5 mm |
| Engine Compression Ratio | 9.2:1 | 22.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1590 kg | 915 kg |
| Vehicle Length | 4920 mm | 4070 mm |
| Vehicle Width | 1850 mm | 1660 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2840 mm | 2490 mm |
| Fuel Tank Capacity | 70 L | 38 L |
