1951 Alvis TB 21 vs. 1981 Ford Mustang
To start off, 1981 Ford Mustang is newer by 30 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 4,942 cc (8 cylinders), 1981 Ford Mustang is equipped with a bigger engine. In terms of performance, 1981 Ford Mustang (173 HP @ 3800 RPM) has 82 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1981 Ford Mustang should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1981 Ford Mustang (332 Nm) has 128 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1981 Ford Mustang 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 | 1981 Ford Mustang | |
| Make | Alvis | Ford |
| Model | TB 21 | Mustang |
| Year Released | 1951 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4942 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 173 HP |
| Engine RPM | 4000 RPM | 3800 RPM |
| Torque | 204 Nm | 332 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4560 mm |
| Vehicle Width | 1680 mm | 1720 mm |
| Wheelbase Size | 2750 mm | 2560 mm |
