1951 Alvis TB 21 vs. 1967 Pontiac Firebird
To start off, 1967 Pontiac Firebird is newer by 16 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 5,300 cc (8 cylinders), 1967 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1967 Pontiac Firebird (255 HP) has 164 more horse power than 1951 Alvis TB 21. (91 HP) In normal driving conditions, 1967 Pontiac Firebird should accelerate faster than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 1967 Pontiac Firebird | |
| Make | Alvis | Pontiac |
| Model | TB 21 | Firebird |
| Year Released | 1951 | 1967 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5300 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 255 HP |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4800 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Wheelbase Size | 2750 mm | 2750 mm |
