2006 Opel Astra vs. 1981 Renault 18
To start off, 2006 Opel Astra is newer by 25 year(s). Which means there will be less support and parts availability for 1981 Renault 18. In addition, the cost of maintenance, including insurance, on 1981 Renault 18 would be higher. At 1,910 cc (4 cylinders), 2006 Opel Astra is equipped with a bigger engine. In terms of performance, 2006 Opel Astra (148 HP @ 4000 RPM) has 68 more horse power than 1981 Renault 18. (80 HP @ 5000 RPM). In normal driving conditions, 2006 Opel Astra should accelerate faster than 1981 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Astra weights approximately 368 kg more than 1981 Renault 18. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Opel Astra (320 Nm @ 2000 RPM) has 183 more torque (in Nm) than 1981 Renault 18. (137 Nm @ 3000 RPM). This means 2006 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 18.
Compare all specifications:
| 2006 Opel Astra | 1981 Renault 18 | |
| Make | Opel | Renault |
| Model | Astra | 18 |
| Year Released | 2006 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1647 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 80 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 320 Nm | 137 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 82 mm | 81 mm |
| Engine Stroke Size | 90.4 mm | 83.5 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1393 kg | 1025 kg |
| Vehicle Length | 4260 mm | 4470 mm |
| Vehicle Width | 1760 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1410 mm |
