1951 Alvis TB 21 vs. 1961 Cadillac DeVille
To start off, 1961 Cadillac DeVille is newer by 10 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 6,390 cc (8 cylinders), 1961 Cadillac DeVille is equipped with a bigger engine. In terms of performance, 1961 Cadillac DeVille (208 HP @ 4800 RPM) has 117 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1961 Cadillac DeVille should accelerate faster than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 1961 Cadillac DeVille | |
| Make | Alvis | Cadillac |
| Model | TB 21 | DeVille |
| Year Released | 1951 | 1961 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 6390 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 208 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Engine Bore Size | 84 mm | 101.6 mm |
| Engine Stroke Size | 90 mm | 98.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5650 mm |
| Vehicle Width | 1680 mm | 2030 mm |
| Wheelbase Size | 2750 mm | 3300 mm |
