1974 Ford Cortina vs. 1991 Ford Sierra
To start off, 1991 Ford Sierra is newer by 17 year(s). Which means there will be less support and parts availability for 1974 Ford Cortina. In addition, the cost of maintenance, including insurance, on 1974 Ford Cortina would be higher. At 1,751 cc (4 cylinders), 1991 Ford Sierra is equipped with a bigger engine. In terms of performance, 1991 Ford Sierra (75 HP @ 4500 RPM) has 19 more horse power than 1974 Ford Cortina. (56 HP @ 5500 RPM) In normal driving conditions, 1991 Ford Sierra should accelerate faster than 1974 Ford Cortina. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Sierra weights approximately 105 kg more than 1974 Ford Cortina. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Ford Sierra (152 Nm @ 2200 RPM) has 61 more torque (in Nm) than 1974 Ford Cortina. (91 Nm @ 3000 RPM). This means 1991 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1974 Ford Cortina.
Compare all specifications:
| 1974 Ford Cortina | 1991 Ford Sierra | |
| Make | Ford | Ford |
| Model | Cortina | Sierra |
| Year Released | 1974 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 1751 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 75 HP |
| Engine RPM | 5500 RPM | 4500 RPM |
| Torque | 91 Nm | 152 Nm |
| Torque RPM | 3000 RPM | 2200 RPM |
| Engine Bore Size | 81 mm | 82.5 mm |
| Engine Stroke Size | 63 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 21.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1040 kg | 1145 kg |
| Vehicle Length | 4280 mm | 4430 mm |
| Vehicle Width | 1710 mm | 1700 mm |
| Vehicle Height | 1330 mm | 1370 mm |
| Wheelbase Size | 2590 mm | 2620 mm |
| Fuel Tank Capacity | 87 L | 60 L |
