1952 Alvis TB 21 vs. 1990 Porsche 911
To start off, 1990 Porsche 911 is newer by 38 year(s). Which means there will be less support and parts availability for 1952 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1952 Alvis TB 21 would be higher. At 3,600 cc (6 cylinders), 1990 Porsche 911 is equipped with a bigger engine. In terms of performance, 1990 Porsche 911 (250 HP) has 159 more horse power than 1952 Alvis TB 21. (91 HP) In normal driving conditions, 1990 Porsche 911 should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 1990 Porsche 911 (309 Nm) has 105 more torque (in Nm) than 1952 Alvis TB 21. (204 Nm). This means 1990 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1952 Alvis TB 21.
Compare all specifications:
| 1952 Alvis TB 21 | 1990 Porsche 911 | |
| Make | Alvis | Porsche |
| Model | TB 21 | 911 |
| Year Released | 1952 | 1990 |
| Engine Position | Front | Rear |
| Engine Size | 2992 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 91 HP | 250 HP |
| Torque | 204 Nm | 309 Nm |
| Engine Bore Size | 84 mm | 100.1 mm |
| Engine Stroke Size | 90 mm | 76.5 mm |
| Engine Compression Ratio | 7.1:1 | 11.3:1 |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4250 mm |
| Vehicle Width | 1680 mm | 1660 mm |
| Wheelbase Size | 2750 mm | 2280 mm |
