1951 Alvis TB 21 vs. 1978 Pontiac Firebird
To start off, 1978 Pontiac Firebird is newer by 27 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 6,547 cc (8 cylinders), 1978 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1978 Pontiac Firebird (285 HP @ 4400 RPM) has 194 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1978 Pontiac Firebird should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1978 Pontiac Firebird (421 Nm) has 217 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1978 Pontiac Firebird 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 | 1978 Pontiac Firebird | |
Make | Alvis | Pontiac |
Model | TB 21 | Firebird |
Year Released | 1951 | 1978 |
Engine Position | Front | Front |
Engine Size | 2993 cc | 6547 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 91 HP | 285 HP |
Engine RPM | 4000 RPM | 4400 RPM |
Torque | 204 Nm | 421 Nm |
Engine Bore Size | 84 mm | 104.7 mm |
Engine Stroke Size | 90 mm | 95.3 mm |
Fuel Type | Gasoline | Gasoline |
Number of Seats | 5 seats | 4 seats |
Vehicle Length | 4430 mm | 4880 mm |
Vehicle Width | 1680 mm | 1870 mm |
Wheelbase Size | 2750 mm | 2750 mm |