1957 Ford Prefect vs. 1985 Ford Sierra
To start off, 1985 Ford Sierra is newer by 28 year(s). Which means there will be less support and parts availability for 1957 Ford Prefect. In addition, the cost of maintenance, including insurance, on 1957 Ford Prefect would be higher. At 2,790 cc (6 cylinders), 1985 Ford Sierra is equipped with a bigger engine. In terms of performance, 1985 Ford Sierra (148 HP @ 5700 RPM) has 117 more horse power than 1957 Ford Prefect. (31 HP @ 4500 RPM) In normal driving conditions, 1985 Ford Sierra should accelerate faster than 1957 Ford Prefect. With that said, vehicle weight also plays an important factor in acceleration. 1985 Ford Sierra weights approximately 440 kg more than 1957 Ford Prefect. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1985 Ford Sierra (220 Nm @ 3800 RPM) has 149 more torque (in Nm) than 1957 Ford Prefect. (71 Nm @ 2150 RPM). This means 1985 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1957 Ford Prefect.
Compare all specifications:
| 1957 Ford Prefect | 1985 Ford Sierra | |
| Make | Ford | Ford |
| Model | Prefect | Sierra |
| Year Released | 1957 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 1172 cc | 2790 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 31 HP | 148 HP |
| Engine RPM | 4500 RPM | 5700 RPM |
| Torque | 71 Nm | 220 Nm |
| Torque RPM | 2150 RPM | 3800 RPM |
| Engine Bore Size | 63.5 mm | 93 mm |
| Engine Stroke Size | 92.5 mm | 68.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 765 kg | 1205 kg |
| Vehicle Length | 3850 mm | 4400 mm |
| Vehicle Width | 1550 mm | 1680 mm |
| Vehicle Height | 1500 mm | 1370 mm |
| Wheelbase Size | 2220 mm | 2620 mm |
