2009 Citroen C6 vs. 1987 Ford Sierra
To start off, 2009 Citroen C6 is newer by 22 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 2,720 cc (6 cylinders), 2009 Citroen C6 is equipped with a bigger engine. In terms of performance, 2009 Citroen C6 (201 HP @ 4200 RPM) has 89 more horse power than 1987 Ford Sierra. (112 HP @ 5300 RPM). In normal driving conditions, 2009 Citroen C6 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 735 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2009 Citroen C6 (440 Nm @ 1900 RPM) has 260 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 2009 Citroen C6 | 1987 Ford Sierra | |
| Make | Citroen | Ford |
| Model | C6 | Sierra |
| Year Released | 2009 | 1987 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2720 cc | 2292 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 201 HP | 112 HP |
| Engine RPM | 4200 RPM | 5300 RPM |
| Torque | 440 Nm | 180 Nm |
| Torque RPM | 1900 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 96 mm |
| Engine Stroke Size | 88 mm | 79.5 mm |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1870 kg | 1135 kg |
| Vehicle Length | 4910 mm | 4500 mm |
| Vehicle Width | 1870 mm | 1680 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2910 mm | 2620 mm |
