1951 Alvis TB 21 vs. 1999 Holden Astra
To start off, 1999 Holden Astra is newer by 48 year(s). Which means there will be less support and parts availability for 1951 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TB 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1999 Holden Astra (145 HP @ 5800 RPM) has 54 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1999 Holden Astra should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 1 more torque (in Nm) than 1999 Holden Astra. (203 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1999 Holden Astra.
Compare all specifications:
| 1951 Alvis TB 21 | 1999 Holden Astra | |
| Make | Alvis | Holden |
| Model | TB 21 | Astra |
| Year Released | 1951 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 145 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 204 Nm | 203 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4120 mm |
| Vehicle Width | 1680 mm | 1720 mm |
| Wheelbase Size | 2750 mm | 2610 mm |
