1951 Alvis TB 21 vs. 1974 Cadillac Calais
To start off, 1974 Cadillac Calais is newer by 23 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 7,734 cc (8 cylinders), 1974 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1974 Cadillac Calais (193 HP @ 4400 RPM) has 102 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1974 Cadillac Calais should accelerate faster than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 1974 Cadillac Calais | |
| Make | Alvis | Cadillac |
| Model | TB 21 | Calais |
| Year Released | 1951 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 7734 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 193 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 5880 mm |
| Vehicle Width | 1680 mm | 2030 mm |
| Wheelbase Size | 2750 mm | 3310 mm |
