1952 Alvis TB 21 vs. 2003 Opel Astra
To start off, 2003 Opel Astra is newer by 51 year(s). Which means there will be less support and parts availability for 1952 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1952 Alvis TB 21 would be higher. At 2,992 cc (6 cylinders), 1952 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1952 Alvis TB 21 (91 HP @ 4000 RPM) has 2 more horse power than 2003 Opel Astra. (89 HP @ 6000 RPM). In normal driving conditions, 1952 Alvis TB 21 should accelerate faster than 2003 Opel Astra.
Let's talk about torque, 1952 Alvis TB 21 (204 Nm @ 2200 RPM) has 79 more torque (in Nm) than 2003 Opel Astra. (125 Nm @ 4000 RPM). This means 1952 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra.
Compare all specifications:
| 1952 Alvis TB 21 | 2003 Opel Astra | |
| Make | Alvis | Opel |
| Model | TB 21 | Astra |
| Year Released | 1952 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 1388 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 89 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 125 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 77.6 mm |
| Engine Stroke Size | 90 mm | 73.4 mm |
| Engine Compression Ratio | 7.1:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4260 mm |
| Vehicle Width | 1680 mm | 1720 mm |
| Wheelbase Size | 2750 mm | 2620 mm |
