1951 Alvis TB 21 vs. 1984 Pontiac Trans Am
To start off, 1984 Pontiac Trans Am is newer by 33 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 4,998 cc (8 cylinders), 1984 Pontiac Trans Am is equipped with a bigger engine.
Compare all specifications:
| 1951 Alvis TB 21 | 1984 Pontiac Trans Am | |
| Make | Alvis | Pontiac |
| Model | TB 21 | Trans Am |
| Year Released | 1951 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4998 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 0 HP |
| Engine Bore Size | 84 mm | 94 mm |
| Engine Stroke Size | 90 mm | 88.9 mm |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4880 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Wheelbase Size | 2750 mm | 2570 mm |
