1949 Allard J1 vs. 1955 Alvis TC 21
To start off, 1955 Alvis TC 21 is newer by 6 year(s). Which means there will be less support and parts availability for 1949 Allard J1. In addition, the cost of maintenance, including insurance, on 1949 Allard J1 would be higher. At 3,622 cc (8 cylinders), 1949 Allard J1 is equipped with a bigger engine. In terms of performance, 1955 Alvis TC 21 (105 HP @ 4000 RPM) has 20 more horse power than 1949 Allard J1. (85 HP @ 3800 RPM) In normal driving conditions, 1955 Alvis TC 21 should accelerate faster than 1949 Allard J1. With that said, vehicle weight also plays an important factor in acceleration. 1955 Alvis TC 21 weights approximately 430 kg more than 1949 Allard J1. 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, 1955 Alvis TC 21 (221 Nm @ 2500 RPM) has 18 more torque (in Nm) than 1949 Allard J1. (203 Nm @ 1500 RPM). This means 1955 Alvis TC 21 will have an easier job in driving up hills or pulling heavy equipment than 1949 Allard J1.
Compare all specifications:
| 1949 Allard J1 | 1955 Alvis TC 21 | |
| Make | Allard | Alvis |
| Model | J1 | TC 21 |
| Year Released | 1949 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 3622 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 105 HP |
| Engine RPM | 3800 RPM | 4000 RPM |
| Torque | 203 Nm | 221 Nm |
| Torque RPM | 1500 RPM | 2500 RPM |
| Engine Bore Size | 77.8 mm | 84 mm |
| Engine Stroke Size | 95.3 mm | 90 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1020 kg | 1450 kg |
| Vehicle Length | 3690 mm | 4810 mm |
| Vehicle Width | 1480 mm | 1680 mm |
| Vehicle Height | 1510 mm | 1590 mm |
| Wheelbase Size | 2440 mm | 2840 mm |
