2009 BMW 523 vs. 1981 Renault 9
To start off, 2009 BMW 523 is newer by 28 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 2,497 cc (6 cylinders), 2009 BMW 523 is equipped with a bigger engine. In terms of performance, 2009 BMW 523 (175 HP @ 5800 RPM) has 128 more horse power than 1981 Renault 9. (47 HP @ 5250 RPM). In normal driving conditions, 2009 BMW 523 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 523 weights approximately 680 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.
Compare all specifications:
| 2009 BMW 523 | 1981 Renault 9 | |
| Make | BMW | Renault |
| Model | 523 | 9 |
| Year Released | 2009 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1108 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 47 HP |
| Engine RPM | 5800 RPM | 5250 RPM |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 82 mm | 70 mm |
| Engine Stroke Size | 78.8 mm | 72 mm |
| Engine Compression Ratio | 11.0:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1500 kg | 820 kg |
| Vehicle Length | 4850 mm | 4070 mm |
| Vehicle Width | 1470 mm | 1660 mm |
| Vehicle Height | 1850 mm | 1410 mm |
| Wheelbase Size | 2890 mm | 2490 mm |
| Fuel Tank Capacity | 70 L | 38 L |
