1951 Alvis TB 21 vs. 1955 Fairthorpe Atom
To start off, 1955 Fairthorpe Atom is newer by 4 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, 1951 Alvis TB 21 (91 HP @ 4000 RPM) has 56 more horse power than 1955 Fairthorpe Atom. (35 HP @ 5700 RPM). In normal driving conditions, 1951 Alvis TB 21 should accelerate faster than 1955 Fairthorpe Atom.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 155 more torque (in Nm) than 1955 Fairthorpe Atom. (49 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1955 Fairthorpe Atom.
Compare all specifications:
| 1951 Alvis TB 21 | 1955 Fairthorpe Atom | |
| Make | Alvis | Fairthorpe |
| Model | TB 21 | Atom |
| Year Released | 1951 | 1955 |
| Engine Position | Front | Rear |
| Engine Size | 2993 cc | 646 cc |
| Engine Cylinders | 6 cylinders | 2 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 35 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 204 Nm | 49 Nm |
| Engine Compression Ratio | 7.1:1 | 6.5:1 |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 3660 mm |
| Vehicle Width | 1680 mm | 1530 mm |
| Wheelbase Size | 2750 mm | 2270 mm |
