1951 Alvis TB 21 vs. 2003 Caterham 7
To start off, 2003 Caterham 7 is newer by 52 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, 2003 Caterham 7 (200 HP @ 7500 RPM) has 109 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2003 Caterham 7 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2003 Caterham 7 (210 Nm) has 6 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2003 Caterham 7 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 | 2003 Caterham 7 | |
| Make | Alvis | Caterham |
| Model | TB 21 | 7 |
| Year Released | 1951 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 200 HP |
| Engine RPM | 4000 RPM | 7500 RPM |
| Torque | 204 Nm | 210 Nm |
| Engine Bore Size | 84 mm | 80.1 mm |
| Engine Stroke Size | 90 mm | 89.3 mm |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 3110 mm |
| Vehicle Width | 1680 mm | 1580 mm |
| Wheelbase Size | 2750 mm | 2230 mm |
