1951 Alvis TB 21 vs. 1981 Mini MK IV
To start off, 1981 Mini MK IV 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 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1951 Alvis TB 21 (91 HP @ 4000 RPM) has 57 more horse power than 1981 Mini MK IV. (34 HP @ 5500 RPM). In normal driving conditions, 1951 Alvis TB 21 should accelerate faster than 1981 Mini MK IV.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 143 more torque (in Nm) than 1981 Mini MK IV. (61 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1981 Mini MK IV.
Compare all specifications:
| 1951 Alvis TB 21 | 1981 Mini MK IV | |
| Make | Alvis | Mini |
| Model | TB 21 | MK IV |
| Year Released | 1951 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 848 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 34 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 204 Nm | 61 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 3060 mm |
| Vehicle Width | 1680 mm | 1420 mm |
| Wheelbase Size | 2750 mm | 2040 mm |
