1951 Alvis TA 21 vs. 1958 Alvis TD
To start off, 1958 Alvis TD is newer by 7 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 1958 Alvis TD (116 HP @ 4500 RPM) has 23 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1958 Alvis TD should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1951 Alvis TA 21 weights approximately 23 kg more than 1958 Alvis TD.
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, 1958 Alvis TD (221 Nm @ 2500 RPM) has 17 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 1958 Alvis TD will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21.
Compare all specifications:
| 1951 Alvis TA 21 | 1958 Alvis TD | |
| Make | Alvis | Alvis |
| Model | TA 21 | TD |
| Year Released | 1951 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2991 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 93 HP | 116 HP |
| Engine RPM | 4000 RPM | 4500 RPM |
| Torque | 204 Nm | 221 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 90 mm |
| Engine Compression Ratio | 7.1:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1425 kg |
| Vehicle Length | 4630 mm | 4800 mm |
| Vehicle Width | 1680 mm | 1670 mm |
| Vehicle Height | 1600 mm | 1530 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Tank Capacity | 64 L | 64 L |
