1952 Alvis TB 21 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 54 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, 2006 Opel Astra (197 HP @ 5400 RPM) has 106 more horse power than 1952 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Astra should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 2006 Opel Astra (262 Nm @ 4200 RPM) has 58 more torque (in Nm) than 1952 Alvis TB 21. (204 Nm @ 2200 RPM). This means 2006 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1952 Alvis TB 21.
Compare all specifications:
| 1952 Alvis TB 21 | 2006 Opel Astra | |
| Make | Alvis | Opel |
| Model | TB 21 | Astra |
| Year Released | 1952 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 1996 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 197 HP |
| Engine RPM | 4000 RPM | 5400 RPM |
| Torque | 204 Nm | 262 Nm |
| Torque RPM | 2200 RPM | 4200 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 90 mm | 86 mm |
| Engine Compression Ratio | 7.1:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4300 mm |
| Vehicle Width | 1680 mm | 1760 mm |
| Wheelbase Size | 2750 mm | 2620 mm |
