1951 Alvis TB 21 vs. 1977 Avanti Avanti
To start off, 1977 Avanti Avanti is newer by 26 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 6,570 cc (8 cylinders), 1977 Avanti Avanti is equipped with a bigger engine. In terms of performance, 1977 Avanti Avanti (177 HP @ 3400 RPM) has 86 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1977 Avanti Avanti should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1977 Avanti Avanti (442 Nm) has 238 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1977 Avanti Avanti 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 | 1977 Avanti Avanti | |
| Make | Alvis | Avanti |
| Model | TB 21 | Avanti |
| Year Released | 1951 | 1977 |
| Engine Size | 2993 cc | 6570 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 177 HP |
| Engine RPM | 4000 RPM | 3400 RPM |
| Torque | 204 Nm | 442 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4910 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Wheelbase Size | 2750 mm | 2780 mm |
