1951 Alvis TB 21 vs. 1952 Jaguar XK
To start off, 1952 Jaguar XK is newer by 1 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 3,441 cc (6 cylinders), 1952 Jaguar XK is equipped with a bigger engine. In terms of performance, 1952 Jaguar XK (158 HP @ 5000 RPM) has 67 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1952 Jaguar XK should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1952 Jaguar XK (290 Nm) has 86 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1952 Jaguar XK 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 | 1952 Jaguar XK | |
| Make | Alvis | Jaguar |
| Model | TB 21 | XK |
| Year Released | 1951 | 1952 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3441 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 158 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 204 Nm | 290 Nm |
| Engine Bore Size | 84 mm | 83 mm |
| Engine Stroke Size | 90 mm | 106 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4430 mm |
| Vehicle Width | 1680 mm | 1570 mm |
| Wheelbase Size | 2750 mm | 2600 mm |
