1951 Alvis TB 21 vs. 1978 Datsun 280Z
To start off, 1978 Datsun 280Z 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, 1978 Datsun 280Z (150 HP @ 5600 RPM) has 59 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1978 Datsun 280Z should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1978 Datsun 280Z (221 Nm) has 17 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1978 Datsun 280Z 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 | 1978 Datsun 280Z | |
| Make | Alvis | Datsun |
| Model | TB 21 | 280Z |
| Year Released | 1951 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2753 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 150 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 204 Nm | 221 Nm |
| Engine Bore Size | 84 mm | 86.1 mm |
| Engine Stroke Size | 90 mm | 79 mm |
| Engine Compression Ratio | 7.1:1 | 8.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4399 mm |
| Vehicle Width | 1680 mm | 1631 mm |
| Wheelbase Size | 2750 mm | 2304 mm |
