1973 Opel Commodore vs. 1970 Riley 4
To start off, 1973 Opel Commodore is newer by 3 year(s). Which means there will be less support and parts availability for 1970 Riley 4. In addition, the cost of maintenance, including insurance, on 1970 Riley 4 would be higher. At 2,488 cc (6 cylinders), 1973 Opel Commodore is equipped with a bigger engine. In terms of performance, 1973 Opel Commodore (114 HP @ 5200 RPM) has 47 more horse power than 1970 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 1973 Opel Commodore should accelerate faster than 1970 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 1973 Opel Commodore weights approximately 22 kg more than 1970 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1973 Opel Commodore (177 Nm @ 3800 RPM) has 57 more torque (in Nm) than 1970 Riley 4. (120 Nm @ 2500 RPM). This means 1973 Opel Commodore will have an easier job in driving up hills or pulling heavy equipment than 1970 Riley 4.
Compare all specifications:
| 1973 Opel Commodore | 1970 Riley 4 | |
| Make | Opel | Riley |
| Model | Commodore | 4 |
| Year Released | 1973 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 2488 cc | 1622 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 67 HP |
| Engine RPM | 5200 RPM | 5000 RPM |
| Torque | 177 Nm | 120 Nm |
| Torque RPM | 3800 RPM | 2500 RPM |
| Engine Bore Size | 87 mm | 76.2 mm |
| Engine Stroke Size | 69.8 mm | 88.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1170 kg | 1148 kg |
| Vehicle Length | 4620 mm | 4540 mm |
| Vehicle Width | 1740 mm | 1620 mm |
| Vehicle Height | 1430 mm | 1510 mm |
| Wheelbase Size | 2680 mm | 2530 mm |
| Fuel Tank Capacity | 70 L | 45 L |
