1951 Alvis TB 21 vs. 2005 Vector M12
To start off, 2005 Vector M12 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 5,707 cc (12 cylinders), 2005 Vector M12 is equipped with a bigger engine. In terms of performance, 2005 Vector M12 (484 HP @ 6800 RPM) has 393 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2005 Vector M12 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2005 Vector M12 (576 Nm) has 372 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2005 Vector M12 will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 2005 Vector M12 | |
| Make | Alvis | Vector |
| Model | TB 21 | M12 |
| Year Released | 1951 | 2005 |
| Engine Position | Front | Middle |
| Engine Size | 2993 cc | 5707 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 484 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 204 Nm | 576 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4790 mm |
| Vehicle Width | 1680 mm | 2030 mm |
| Wheelbase Size | 2750 mm | 2750 mm |
