1950 Alvis TB 21 vs. 1950 Riley RM A
To start off, both 1950 Alvis TB 21 and 1950 Riley RM A were released in the same year (1950). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,993 cc (6 cylinders), 1950 Alvis TB 21 is equipped with a bigger engine.
Compare all specifications:
| 1950 Alvis TB 21 | 1950 Riley RM A | |
| Make | Alvis | Riley |
| Model | TB 21 | RM A |
| Year Released | 1950 | 1950 |
| Engine Size | 2993 cc | 1496 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 0 HP |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4560 mm |
| Vehicle Width | 1680 mm | 1620 mm |
| Wheelbase Size | 2750 mm | 2870 mm |
