1951 Alvis TB 21 vs. 1985 Pontiac Firebird
To start off, 1985 Pontiac Firebird is newer by 34 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 5,013 cc (8 cylinders), 1985 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1985 Pontiac Firebird (190 HP @ 4800 RPM) has 99 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1985 Pontiac Firebird should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1985 Pontiac Firebird (325 Nm) has 121 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1985 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 | 1985 Pontiac Firebird | |
Make | Alvis | Pontiac |
Model | TB 21 | Firebird |
Year Released | 1951 | 1985 |
Engine Position | Front | Front |
Engine Size | 2993 cc | 5013 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 91 HP | 190 HP |
Engine RPM | 4000 RPM | 4800 RPM |
Torque | 204 Nm | 325 Nm |
Engine Bore Size | 84 mm | 95 mm |
Engine Stroke Size | 90 mm | 88.4 mm |
Engine Compression Ratio | 7.1:1 | 9.5:1 |
Fuel Type | Gasoline | Gasoline |
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 |