1951 Alvis TB 21 vs. 2013 Porsche Panamera
To start off, 2013 Porsche Panamera is newer by 62 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 4,800 cc (8 cylinders), 2013 Porsche Panamera is equipped with a bigger engine. In terms of performance, 2013 Porsche Panamera (493 HP @ 6000 RPM) has 402 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2013 Porsche Panamera should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2013 Porsche Panamera (700 Nm) has 496 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2013 Porsche Panamera 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 | 2013 Porsche Panamera | |
| Make | Alvis | Porsche |
| Model | TB 21 | Panamera |
| Year Released | 1951 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4800 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | single |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 493 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 700 Nm |
| Engine Bore Size | 84 mm | 96 mm |
| Engine Stroke Size | 90 mm | 83 mm |
| Fuel Type | Gasoline | Electric |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4970 mm |
| Vehicle Width | 1680 mm | 2114 mm |
| Wheelbase Size | 2750 mm | 2920 mm |
