1956 Chrysler Imperial vs. 1973 Pontiac Firebird
To start off, 1973 Pontiac Firebird is newer by 17 year(s). Which means there will be less support and parts availability for 1956 Chrysler Imperial. In addition, the cost of maintenance, including insurance, on 1956 Chrysler Imperial would be higher. At 7,462 cc (8 cylinders), 1973 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1973 Pontiac Firebird (296 HP @ 4000 RPM) has 49 more horse power than 1956 Chrysler Imperial. (247 HP @ 4600 RPM) In normal driving conditions, 1973 Pontiac Firebird should accelerate faster than 1956 Chrysler Imperial. With that said, vehicle weight also plays an important factor in acceleration. 1956 Chrysler Imperial weights approximately 650 kg more than 1973 Pontiac Firebird.
Let's talk about torque, 1973 Pontiac Firebird (563 Nm @ 3200 RPM) has 93 more torque (in Nm) than 1956 Chrysler Imperial. (470 Nm @ 2800 RPM). This means 1973 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1956 Chrysler Imperial.
Compare all specifications:
| 1956 Chrysler Imperial | 1973 Pontiac Firebird | |
| Make | Chrysler | Pontiac |
| Model | Imperial | Firebird |
| Year Released | 1956 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 5423 cc | 7462 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 247 HP | 296 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 470 Nm | 563 Nm |
| Torque RPM | 2800 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 2400 kg | 1750 kg |
| Vehicle Length | 6170 mm | 4870 mm |
| Vehicle Width | 2020 mm | 1870 mm |
| Vehicle Height | 1560 mm | 1290 mm |
| Wheelbase Size | 3800 mm | 2750 mm |
