1981 Renault 9 vs. 2011 BMW 750
To start off, 2011 BMW 750 is newer by 30 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 4,400 cc (8 cylinders), 2011 BMW 750 is equipped with a bigger engine. In terms of performance, 2011 BMW 750 (400 HP) has 333 more horse power than 1981 Renault 9. (67 HP) In normal driving conditions, 2011 BMW 750 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW 750 weights approximately 1245 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, 2011 BMW 750 (609 Nm @ 1750 RPM) has 499 more torque (in Nm) than 1981 Renault 9. (110 Nm @ 3000 RPM). This means 2011 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1981 Renault 9 | 2011 BMW 750 | |
| Make | Renault | BMW |
| Model | 9 | 750 |
| Year Released | 1981 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1397 cc | 4400 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 67 HP | 400 HP |
| Torque | 110 Nm | 609 Nm |
| Torque RPM | 3000 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 860 kg | 2105 kg |
| Vehicle Length | 4070 mm | 5215 mm |
| Vehicle Width | 1660 mm | 1902 mm |
| Vehicle Height | 1410 mm | 1481 mm |
| Wheelbase Size | 2490 mm | 3211 mm |
| Fuel Tank Capacity | 38 L | 82 L |
