1973 Citroen GS vs. 1987 Ford Sierra
To start off, 1987 Ford Sierra is newer by 14 year(s). Which means there will be less support and parts availability for 1973 Citroen GS. In addition, the cost of maintenance, including insurance, on 1973 Citroen GS 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 @ 5300 RPM) has 58 more horse power than 1973 Citroen GS. (55 HP @ 6500 RPM) In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1973 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 200 kg more than 1973 Citroen GS. 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 108 more torque (in Nm) than 1973 Citroen GS. (72 Nm @ 3500 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen GS.
Compare all specifications:
| 1973 Citroen GS | 1987 Ford Sierra | |
| Make | Citroen | Ford |
| Model | GS | Sierra |
| Year Released | 1973 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1015 cc | 2294 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 55 HP | 113 HP |
| Engine RPM | 6500 RPM | 5300 RPM |
| Torque | 72 Nm | 180 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 74 mm | 96 mm |
| Engine Stroke Size | 59 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 890 kg | 1090 kg |
| Vehicle Length | 4130 mm | 4400 mm |
| Vehicle Width | 1620 mm | 1680 mm |
| Vehicle Height | 1360 mm | 1370 mm |
| Wheelbase Size | 2560 mm | 2620 mm |
| Fuel Tank Capacity | 43 L | 45 L |
