1950 Alvis TB 21 vs. 1988 Porsche 911
To start off, 1988 Porsche 911 is newer by 38 year(s). Which means there will be less support and parts availability for 1950 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1950 Alvis TB 21 would be higher. At 3,162 cc (6 cylinders), 1988 Porsche 911 is equipped with a bigger engine. In terms of performance, 1988 Porsche 911 (228 HP @ 5900 RPM) has 137 more horse power than 1950 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1988 Porsche 911 should accelerate faster than 1950 Alvis TB 21.
Let's talk about torque, 1988 Porsche 911 (286 Nm) has 82 more torque (in Nm) than 1950 Alvis TB 21. (204 Nm). This means 1988 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1950 Alvis TB 21.
Compare all specifications:
| 1950 Alvis TB 21 | 1988 Porsche 911 | |
| Make | Alvis | Porsche |
| Model | TB 21 | 911 |
| Year Released | 1950 | 1988 |
| Engine Position | Front | Rear |
| Engine Size | 2993 cc | 3162 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 228 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 204 Nm | 286 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4300 mm |
| Vehicle Width | 1680 mm | 1660 mm |
| Wheelbase Size | 2750 mm | 2270 mm |
| Fuel Tank Capacity | 64 L | 80 L |
