1984 Ford Orion vs. 1987 Ford Sierra
To start off, 1987 Ford Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 1984 Ford Orion. In addition, the cost of maintenance, including insurance, on 1984 Ford Orion would be higher. At 2,294 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (113 HP) has 35 more horse power than 1984 Ford Orion. (78 HP) In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1984 Ford Orion. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 184 kg more than 1984 Ford Orion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1987 Ford Sierra (180 Nm @ 3000 RPM) has 52 more torque (in Nm) than 1984 Ford Orion. (128 Nm @ 3500 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Orion.
Compare all specifications:
| 1984 Ford Orion | 1987 Ford Sierra | |
| Make | Ford | Ford |
| Model | Orion | Sierra |
| Year Released | 1984 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1597 cc | 2294 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 78 HP | 113 HP |
| Torque | 128 Nm | 180 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 96 mm |
| Engine Stroke Size | 79.5 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 906 kg | 1090 kg |
| Vehicle Length | 4220 mm | 4400 mm |
| Vehicle Width | 1650 mm | 1680 mm |
| Vehicle Height | 1350 mm | 1370 mm |
| Wheelbase Size | 2410 mm | 2620 mm |
| Fuel Tank Capacity | 87 L | 45 L |
