1951 Alvis TB 21 vs. 1979 Opel Kadett
To start off, 1979 Opel Kadett is newer by 28 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 1 more horse power than 1979 Opel Kadett. (90 HP @ 5800 RPM). In normal driving conditions, 1951 Alvis TB 21 should accelerate faster than 1979 Opel Kadett.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 78 more torque (in Nm) than 1979 Opel Kadett. (126 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1979 Opel Kadett.
Compare all specifications:
| 1951 Alvis TB 21 | 1979 Opel Kadett | |
| Make | Alvis | Opel |
| Model | TB 21 | Kadett |
| Year Released | 1951 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1584 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 90 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 204 Nm | 126 Nm |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 90 mm | 79.5 mm |
| Engine Compression Ratio | 7.1:1 | 9.2:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4000 mm |
| Vehicle Width | 1680 mm | 1670 mm |
| Wheelbase Size | 2750 mm | 2400 mm |
