1951 Allard J2 vs. 1978 Opel Kadett
To start off, 1978 Opel Kadett is newer by 27 year(s). Which means there will be less support and parts availability for 1951 Allard J2. In addition, the cost of maintenance, including insurance, on 1951 Allard J2 would be higher. At 5,415 cc (8 cylinders), 1951 Allard J2 is equipped with a bigger engine. In terms of performance, 1951 Allard J2 (158 HP @ 3800 RPM) has 99 more horse power than 1978 Opel Kadett. (59 HP @ 5400 RPM). In normal driving conditions, 1951 Allard J2 should accelerate faster than 1978 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1951 Allard J2 weights approximately 160 kg more than 1978 Opel Kadett. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1951 Allard J2 | 1978 Opel Kadett | |
| Make | Allard | Opel |
| Model | J2 | Kadett |
| Year Released | 1951 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5415 cc | 1196 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 59 HP |
| Engine RPM | 3800 RPM | 5400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 980 kg | 820 kg |
| Vehicle Length | 3780 mm | 4130 mm |
| Vehicle Width | 1730 mm | 1590 mm |
| Vehicle Height | 1300 mm | 1380 mm |
| Wheelbase Size | 2550 mm | 2400 mm |
| Fuel Tank Capacity | 38 L | 43 L |
