1951 Alvis TB 21 vs. 1958 Bentley S1
To start off, 1958 Bentley S1 is newer by 7 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 4,887 cc (6 cylinders), 1958 Bentley S1 is equipped with a bigger engine.
Compare all specifications:
| 1951 Alvis TB 21 | 1958 Bentley S1 | |
| Make | Alvis | Bentley |
| Model | TB 21 | S1 |
| Year Released | 1951 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4887 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 0 HP |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5390 mm |
| Vehicle Width | 1680 mm | 1910 mm |
| Wheelbase Size | 2750 mm | 3130 mm |
