1953 Alvis TB 21 vs. 2013 Porsche Cayman
To start off, 2013 Porsche Cayman is newer by 60 year(s). Which means there will be less support and parts availability for 1953 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1953 Alvis TB 21 would be higher. At 3,500 cc (4 cylinders), 2013 Porsche Cayman is equipped with a bigger engine. In terms of performance, 2013 Porsche Cayman (325 HP @ 7400 RPM) has 233 more horse power than 1953 Alvis TB 21. (92 HP @ 4000 RPM) In normal driving conditions, 2013 Porsche Cayman should accelerate faster than 1953 Alvis TB 21.
Let's talk about torque, 2013 Porsche Cayman (370 Nm @ 4750 RPM) has 166 more torque (in Nm) than 1953 Alvis TB 21. (204 Nm @ 2200 RPM). This means 2013 Porsche Cayman will have an easier job in driving up hills or pulling heavy equipment than 1953 Alvis TB 21.
Compare all specifications:
| 1953 Alvis TB 21 | 2013 Porsche Cayman | |
| Make | Alvis | Porsche |
| Model | TB 21 | Cayman |
| Year Released | 1953 | 2013 |
| Engine Position | Front | Rear |
| Engine Size | 2993 cc | 3500 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 92 HP | 325 HP |
| Engine RPM | 4000 RPM | 7400 RPM |
| Torque | 204 Nm | 370 Nm |
| Torque RPM | 2200 RPM | 4750 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 90 mm | 77 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4347 mm |
| Vehicle Width | 1680 mm | 1801 mm |
| Wheelbase Size | 2750 mm | 2415 mm |
