1951 Alvis TB 21 vs. 1970 Datsun 240Z
To start off, 1970 Datsun 240Z is newer by 19 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, 1970 Datsun 240Z (151 HP @ 5600 RPM) has 60 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1970 Datsun 240Z should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 6 more torque (in Nm) than 1970 Datsun 240Z. (198 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1970 Datsun 240Z.
Compare all specifications:
| 1951 Alvis TB 21 | 1970 Datsun 240Z | |
| Make | Alvis | Datsun |
| Model | TB 21 | 240Z |
| Year Released | 1951 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2393 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 151 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 204 Nm | 198 Nm |
| Engine Bore Size | 84 mm | 83 mm |
| Engine Stroke Size | 90 mm | 73.7 mm |
| Engine Compression Ratio | 7.1:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4140 mm |
| Vehicle Width | 1680 mm | 1630 mm |
| Wheelbase Size | 2750 mm | 2300 mm |
