2009 Mercedes-Benz CLS vs. 1981 Renault 9
To start off, 2009 Mercedes-Benz CLS 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 6,208 cc (8 cylinders), 2009 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz CLS (507 HP @ 6800 RPM) has 453 more horse power than 1981 Renault 9. (54 HP @ 4800 RPM). In normal driving conditions, 2009 Mercedes-Benz CLS should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz CLS weights approximately 410 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, 2009 Mercedes-Benz CLS (631 Nm @ 5200 RPM) has 527 more torque (in Nm) than 1981 Renault 9. (104 Nm @ 2250 RPM). This means 2009 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 2009 Mercedes-Benz CLS | 1981 Renault 9 | |
| Make | Mercedes-Benz | Renault |
| Model | CLS | 9 |
| Year Released | 2009 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 6208 cc | 1595 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 507 HP | 54 HP |
| Engine RPM | 6800 RPM | 4800 RPM |
| Torque | 631 Nm | 104 Nm |
| Torque RPM | 5200 RPM | 2250 RPM |
| Engine Compression Ratio | 9.0:1 | 22.5:1 |
| Fuel Type | Diesel | Diesel |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1325 kg | 915 kg |
| Vehicle Length | 4920 mm | 4070 mm |
| Vehicle Width | 1870 mm | 1660 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2860 mm | 2490 mm |
| Fuel Tank Capacity | 80 L | 38 L |
