1954 Alvis TC 21 vs. 1966 Holden HD
To start off, 1966 Holden HD is newer by 12 year(s). Which means there will be less support and parts availability for 1954 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1954 Alvis TC 21 would be higher. At 2,993 cc (6 cylinders), 1954 Alvis TC 21 is equipped with a bigger engine. In terms of performance, 1966 Holden HD (122 HP @ 4600 RPM) has 22 more horse power than 1954 Alvis TC 21. (100 HP @ 4000 RPM) In normal driving conditions, 1966 Holden HD should accelerate faster than 1954 Alvis TC 21. With that said, vehicle weight also plays an important factor in acceleration. 1954 Alvis TC 21 weights approximately 240 kg more than 1966 Holden HD.
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, 1966 Holden HD (237 Nm @ 2200 RPM) has 16 more torque (in Nm) than 1954 Alvis TC 21. (221 Nm @ 2000 RPM). This means 1966 Holden HD will have an easier job in driving up hills or pulling heavy equipment than 1954 Alvis TC 21.
Compare all specifications:
| 1954 Alvis TC 21 | 1966 Holden HD | |
| Make | Alvis | Holden |
| Model | TC 21 | HD |
| Year Released | 1954 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2930 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 122 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 221 Nm | 237 Nm |
| Torque RPM | 2000 RPM | 2200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1440 kg | 1200 kg |
| Vehicle Length | 4630 mm | 4580 mm |
| Vehicle Width | 1680 mm | 1790 mm |
| Vehicle Height | 1580 mm | 1510 mm |
| Wheelbase Size | 2840 mm | 2700 mm |
