2005 Alfa Romeo Spider vs. 1951 Alvis TB 21
To start off, 2005 Alfa Romeo Spider is newer by 54 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, 2005 Alfa Romeo Spider (163 HP @ 6400 RPM) has 72 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM). In normal driving conditions, 2005 Alfa Romeo Spider should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2005 Alfa Romeo Spider (206 Nm) has 2 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2005 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
| 2005 Alfa Romeo Spider | 1951 Alvis TB 21 | |
| Make | Alfa Romeo | Alvis |
| Model | Spider | TB 21 |
| Year Released | 2005 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 163 HP | 91 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 206 Nm | 204 Nm |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 91 mm | 90 mm |
| Engine Compression Ratio | 11.3:1 | 7.1:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Length | 4310 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1680 mm |
| Wheelbase Size | 2600 mm | 2750 mm |
