2000 Caterham C21 vs. 1971 Opel Admiral
To start off, 2000 Caterham C21 is newer by 29 year(s). Which means there will be less support and parts availability for 1971 Opel Admiral. In addition, the cost of maintenance, including insurance, on 1971 Opel Admiral would be higher. At 2,784 cc (6 cylinders), 1971 Opel Admiral is equipped with a bigger engine. In terms of performance, 1971 Opel Admiral (142 HP @ 5200 RPM) has 27 more horse power than 2000 Caterham C21. (115 HP @ 6000 RPM) In normal driving conditions, 1971 Opel Admiral should accelerate faster than 2000 Caterham C21. With that said, vehicle weight also plays an important factor in acceleration. 1971 Opel Admiral weights approximately 825 kg more than 2000 Caterham C21. 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, 1971 Opel Admiral (227 Nm @ 3600 RPM) has 82 more torque (in Nm) than 2000 Caterham C21. (145 Nm @ 3000 RPM). This means 1971 Opel Admiral will have an easier job in driving up hills or pulling heavy equipment than 2000 Caterham C21.
Compare all specifications:
| 2000 Caterham C21 | 1971 Opel Admiral | |
| Make | Caterham | Opel |
| Model | C21 | Admiral |
| Year Released | 2000 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1588 cc | 2784 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 115 HP | 142 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 145 Nm | 227 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Engine Bore Size | 80 mm | 92 mm |
| Engine Stroke Size | 79 mm | 69.8 mm |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 650 kg | 1475 kg |
| Vehicle Length | 3810 mm | 4910 mm |
| Vehicle Width | 1590 mm | 1860 mm |
| Vehicle Height | 1060 mm | 1460 mm |
| Wheelbase Size | 2260 mm | 2850 mm |
