1951 Alvis TB 21 vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 58 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 3,600 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (341 HP @ 6500 RPM) has 250 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2009 Porsche 911 (288 Nm) has 84 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2009 Porsche 911 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 | 2009 Porsche 911 | |
| Make | Alvis | Porsche |
| Model | TB 21 | 911 |
| Year Released | 1951 | 2009 |
| Engine Position | Front | Rear |
| Engine Size | 2993 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 91 HP | 341 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 204 Nm | 288 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4430 mm |
| Vehicle Width | 1680 mm | 1310 mm |
| Wheelbase Size | 2750 mm | 2360 mm |
