1970 Ginetta G21 vs. 1975 Opel Kadett
To start off, 1975 Opel Kadett is newer by 5 year(s). Which means there will be less support and parts availability for 1970 Ginetta G21. In addition, the cost of maintenance, including insurance, on 1970 Ginetta G21 would be higher. At 2,994 cc (6 cylinders), 1970 Ginetta G21 is equipped with a bigger engine. In terms of performance, 1970 Ginetta G21 (128 HP @ 4750 RPM) has 77 more horse power than 1975 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 1970 Ginetta G21 should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1970 Ginetta G21 weights approximately 81 kg more than 1975 Opel Kadett. 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, 1970 Ginetta G21 (235 Nm @ 3000 RPM) has 155 more torque (in Nm) than 1975 Opel Kadett. (80 Nm @ 3400 RPM). This means 1970 Ginetta G21 will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett.
Compare all specifications:
| 1970 Ginetta G21 | 1975 Opel Kadett | |
| Make | Ginetta | Opel |
| Model | G21 | Kadett |
| Year Released | 1970 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2994 cc | 1196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 128 HP | 51 HP |
| Engine RPM | 4750 RPM | 5600 RPM |
| Torque | 235 Nm | 80 Nm |
| Torque RPM | 3000 RPM | 3400 RPM |
| Engine Bore Size | 93.7 mm | 79 mm |
| Engine Stroke Size | 72.4 mm | 61 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 871 kg | 790 kg |
| Vehicle Length | 3980 mm | 4140 mm |
| Vehicle Width | 1610 mm | 1590 mm |
| Vehicle Height | 1170 mm | 1290 mm |
| Wheelbase Size | 2320 mm | 2410 mm |
| Fuel Tank Capacity | 45 L | 43 L |
