1951 Alvis TB 21 vs. 1978 Holden Gemini
To start off, 1978 Holden Gemini is newer by 27 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 25 more horse power than 1978 Holden Gemini. (66 HP @ 5200 RPM). In normal driving conditions, 1951 Alvis TB 21 should accelerate faster than 1978 Holden Gemini.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 91 more torque (in Nm) than 1978 Holden Gemini. (113 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1978 Holden Gemini.
Compare all specifications:
| 1951 Alvis TB 21 | 1978 Holden Gemini | |
| Make | Alvis | Holden |
| Model | TB 21 | Gemini |
| Year Released | 1951 | 1978 |
| 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 | 66 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 204 Nm | 113 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4240 mm |
| Vehicle Width | 1680 mm | 1580 mm |
| Wheelbase Size | 2750 mm | 2410 mm |
