1956 Jensen Interceptor vs. 1985 Pontiac Firebird
To start off, 1985 Pontiac Firebird is newer by 29 year(s). Which means there will be less support and parts availability for 1956 Jensen Interceptor. In addition, the cost of maintenance, including insurance, on 1956 Jensen Interceptor 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 61 more horse power than 1956 Jensen Interceptor. (129 HP @ 3700 RPM) In normal driving conditions, 1985 Pontiac Firebird should accelerate faster than 1956 Jensen Interceptor. With that said, vehicle weight also plays an important factor in acceleration. 1956 Jensen Interceptor weights approximately 21 kg more than 1985 Pontiac Firebird.
Let's talk about torque, 1985 Pontiac Firebird (325 Nm @ 3200 RPM) has 38 more torque (in Nm) than 1956 Jensen Interceptor. (287 Nm @ 2200 RPM). This means 1985 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1956 Jensen Interceptor.
Compare all specifications:
| 1956 Jensen Interceptor | 1985 Pontiac Firebird | |
| Make | Jensen | Pontiac |
| Model | Interceptor | Firebird |
| Year Released | 1956 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 3991 cc | 5013 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 129 HP | 190 HP |
| Engine RPM | 3700 RPM | 4800 RPM |
| Torque | 287 Nm | 325 Nm |
| Torque RPM | 2200 RPM | 3200 RPM |
| Engine Bore Size | 87.3 mm | 95 mm |
| Engine Stroke Size | 111.1 mm | 88.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1495 kg | 1474 kg |
| Vehicle Length | 4780 mm | 4880 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Vehicle Height | 1480 mm | 1270 mm |
| Wheelbase Size | 2860 mm | 2570 mm |
