1951 Alvis TB 21 vs. 2002 Ariel Atom
To start off, 2002 Ariel Atom is newer by 51 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, 2002 Ariel Atom (109 HP @ 5000 RPM) has 18 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2002 Ariel Atom should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 56 more torque (in Nm) than 2002 Ariel Atom. (148 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 2002 Ariel Atom.
Compare all specifications:
| 1951 Alvis TB 21 | 2002 Ariel Atom | |
| Make | Alvis | Ariel |
| Model | TB 21 | Atom |
| Year Released | 1951 | 2002 |
| Engine Position | Front | Rear |
| Engine Size | 2993 cc | 1589 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 109 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 204 Nm | 148 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 1 seats |
| Vehicle Length | 4430 mm | 3420 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Wheelbase Size | 2750 mm | 2350 mm |
