1951 Allard J2 vs. 1949 Jaguar Mark IV
To start off, 1951 Allard J2 is newer by 2 year(s). Which means there will be less support and parts availability for 1949 Jaguar Mark IV. In addition, the cost of maintenance, including insurance, on 1949 Jaguar Mark IV 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 35 more horse power than 1949 Jaguar Mark IV. (123 HP @ 4250 RPM). In normal driving conditions, 1951 Allard J2 should accelerate faster than 1949 Jaguar Mark IV. With that said, vehicle weight also plays an important factor in acceleration. 1949 Jaguar Mark IV weights approximately 810 kg more than 1951 Allard J2.
Compare all specifications:
| 1951 Allard J2 | 1949 Jaguar Mark IV | |
| Make | Allard | Jaguar |
| Model | J2 | Mark IV |
| Year Released | 1951 | 1949 |
| Engine Position | Front | Front |
| Engine Size | 5415 cc | 3483 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 158 HP | 123 HP |
| Engine RPM | 3800 RPM | 4250 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 980 kg | 1790 kg |
| Vehicle Length | 3780 mm | 4730 mm |
| Vehicle Width | 1730 mm | 1680 mm |
| Wheelbase Size | 2550 mm | 3060 mm |
