1951 Alvis TB 21 vs. 1997 Porsche 993
To start off, 1997 Porsche 993 is newer by 46 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 3,589 cc (6 cylinders), 1997 Porsche 993 is equipped with a bigger engine. In terms of performance, 1997 Porsche 993 (282 HP @ 6100 RPM) has 191 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1997 Porsche 993 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1997 Porsche 993 (341 Nm) has 137 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1997 Porsche 993 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 | 1997 Porsche 993 | |
| Make | Alvis | Porsche |
| Model | TB 21 | 993 |
| Year Released | 1951 | 1997 |
| Engine Position | Front | Rear |
| Engine Size | 2993 cc | 3589 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 282 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 204 Nm | 341 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4250 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Wheelbase Size | 2750 mm | 2280 mm |
