1951 Alvis TB 21 vs. 1974 Pontiac Firebird
To start off, 1974 Pontiac Firebird is newer by 23 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 7,467 cc (8 cylinders), 1974 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1974 Pontiac Firebird (335 HP @ 4800 RPM) has 244 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1974 Pontiac Firebird should accelerate faster than 1951 Alvis TB 21.
Compare all specifications:
1951 Alvis TB 21 | 1974 Pontiac Firebird | |
Make | Alvis | Pontiac |
Model | TB 21 | Firebird |
Year Released | 1951 | 1974 |
Engine Position | Front | Front |
Engine Size | 2993 cc | 7467 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Horse Power | 91 HP | 335 HP |
Engine RPM | 4000 RPM | 4800 RPM |
Engine Bore Size | 84 mm | 104.9 mm |
Engine Stroke Size | 90 mm | 108 mm |
Engine Compression Ratio | 7.1:1 | 10.3:1 |
Fuel Type | Gasoline | Gasoline |
Number of Seats | 5 seats | 4 seats |
Vehicle Length | 4430 mm | 4870 mm |
Vehicle Width | 1680 mm | 1880 mm |
Wheelbase Size | 2750 mm | 2750 mm |