1952 Alvis TB 21 vs. 1965 Pontiac Catalina
To start off, 1965 Pontiac Catalina is newer by 13 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 6,891 cc (8 cylinders), 1965 Pontiac Catalina is equipped with a bigger engine. In terms of performance, 1965 Pontiac Catalina (376 HP @ 5000 RPM) has 285 more horse power than 1952 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1965 Pontiac Catalina should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 1965 Pontiac Catalina (625 Nm @ 3600 RPM) has 421 more torque (in Nm) than 1952 Alvis TB 21. (204 Nm @ 2200 RPM). This means 1965 Pontiac Catalina 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 | 1965 Pontiac Catalina | |
| Make | Alvis | Pontiac |
| Model | TB 21 | Catalina |
| Year Released | 1952 | 1965 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 6891 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 376 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 204 Nm | 625 Nm |
| Torque RPM | 2200 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 103.9 mm |
| Engine Stroke Size | 90 mm | 101.6 mm |
| Engine Compression Ratio | 7.1:1 | 10.8:1 |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 5450 mm |
| Vehicle Width | 1680 mm | 2030 mm |
| Wheelbase Size | 2750 mm | 3080 mm |
