1969 Opel Commodore vs. 1981 Renault 18
To start off, 1981 Renault 18 is newer by 12 year(s). Which means there will be less support and parts availability for 1969 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1969 Opel Commodore would be higher. At 2,490 cc (6 cylinders), 1969 Opel Commodore is equipped with a bigger engine. In terms of performance, 1969 Opel Commodore (115 HP @ 5200 RPM) has 52 more horse power than 1981 Renault 18. (63 HP @ 5500 RPM). In normal driving conditions, 1969 Opel Commodore should accelerate faster than 1981 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 1969 Opel Commodore weights approximately 185 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.
Because 1969 Opel Commodore is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1969 Opel Commodore. However, in wet, icy, snow, or gravel driving conditions, 1981 Renault 18, being front wheel drive (FWD), will offer much better control with better grip. 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, 1969 Opel Commodore (177 Nm @ 3800 RPM) has 74 more torque (in Nm) than 1981 Renault 18. (103 Nm @ 3000 RPM). This means 1969 Opel Commodore will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 18.
Compare all specifications:
| 1969 Opel Commodore | 1981 Renault 18 | |
| Make | Opel | Renault |
| Model | Commodore | 18 |
| Year Released | 1969 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2490 cc | 1396 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 115 HP | 63 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 177 Nm | 103 Nm |
| Torque RPM | 3800 RPM | 3000 RPM |
| Engine Bore Size | 87 mm | 76 mm |
| Engine Stroke Size | 69.8 mm | 77 mm |
| Engine Compression Ratio | 9.5:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1170 kg | 985 kg |
| Vehicle Length | 4620 mm | 4500 mm |
| Vehicle Width | 1740 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1410 mm |
| Wheelbase Size | 2680 mm | 2450 mm |
| Fuel Consumption Overall | 7.9 L/100km | 7 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
