1951 Alvis TB 21 vs. 1959 Ferrari 400 Superamerica
To start off, 1959 Ferrari 400 Superamerica is newer by 8 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 3,967 cc (12 cylinders), 1959 Ferrari 400 Superamerica is equipped with a bigger engine. In terms of performance, 1959 Ferrari 400 Superamerica (335 HP @ 7000 RPM) has 244 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1959 Ferrari 400 Superamerica should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1959 Ferrari 400 Superamerica (305 Nm) has 101 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1959 Ferrari 400 Superamerica will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 1959 Ferrari 400 Superamerica | |
| Make | Alvis | Ferrari |
| Model | TB 21 | 400 Superamerica |
| Year Released | 1951 | 1959 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3967 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 335 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 204 Nm | 305 Nm |
| Engine Bore Size | 84 mm | 77 mm |
| Engine Stroke Size | 90 mm | 71 mm |
| Engine Compression Ratio | 7.1:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4380 mm |
| Vehicle Width | 1680 mm | 1680 mm |
| Wheelbase Size | 2750 mm | 2420 mm |
