1958 Chrysler Imperial vs. 1970 Mercury Cougar
To start off, 1970 Mercury Cougar is newer by 12 year(s). Which means there will be less support and parts availability for 1958 Chrysler Imperial. In addition, the cost of maintenance, including insurance, on 1958 Chrysler Imperial would be higher. At 5,802 cc (8 cylinders), 1958 Chrysler Imperial is equipped with a bigger engine. In terms of performance, 1958 Chrysler Imperial (276 HP @ 4600 RPM) has 109 more horse power than 1970 Mercury Cougar. (167 HP @ 4000 RPM). In normal driving conditions, 1958 Chrysler Imperial should accelerate faster than 1970 Mercury Cougar. With that said, vehicle weight also plays an important factor in acceleration. 1958 Chrysler Imperial weights approximately 710 kg more than 1970 Mercury Cougar. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1958 Chrysler Imperial (510 Nm @ 2800 RPM) has 147 more torque (in Nm) than 1970 Mercury Cougar. (363 Nm @ 2400 RPM). This means 1958 Chrysler Imperial will have an easier job in driving up hills or pulling heavy equipment than 1970 Mercury Cougar.
Compare all specifications:
| 1958 Chrysler Imperial | 1970 Mercury Cougar | |
| Make | Chrysler | Mercury |
| Model | Imperial | Cougar |
| Year Released | 1958 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 5802 cc | 5769 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 276 HP | 167 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 510 Nm | 363 Nm |
| Torque RPM | 2800 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 2360 kg | 1650 kg |
| Vehicle Length | 6170 mm | 5840 mm |
| Vehicle Width | 2020 mm | 2000 mm |
| Vehicle Height | 1560 mm | 1340 mm |
| Wheelbase Size | 3800 mm | 2860 mm |
