1971 Citroen SM vs. 2004 Ford Expedition
To start off, 2004 Ford Expedition is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Citroen SM. In addition, the cost of maintenance, including insurance, on 1971 Citroen SM would be higher. At 5,408 cc (8 cylinders), 2004 Ford Expedition is equipped with a bigger engine. In terms of performance, 2004 Ford Expedition (260 HP @ 6000 RPM) has 102 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM) In normal driving conditions, 2004 Ford Expedition should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2004 Ford Expedition weights approximately 1122 kg more than 1971 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Ford Expedition is four wheel drive (4WD), it will have significant more traction and grip than 1971 Citroen SM. In wet, icy, snow, or gravel driving conditions, 2004 Ford Expedition will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2004 Ford Expedition (475 Nm) has 240 more torque (in Nm) than 1971 Citroen SM. (235 Nm). This means 2004 Ford Expedition will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM. 2004 Ford Expedition has automatic transmission and 1971 Citroen SM has manual transmission. 1971 Citroen SM will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Ford Expedition will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Citroen SM | 2004 Ford Expedition | |
| Make | Citroen | Ford |
| Model | SM | Expedition |
| Year Released | 1971 | 2004 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 5408 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 158 HP | 260 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 235 Nm | 475 Nm |
| Engine Bore Size | 87 mm | 90 mm |
| Engine Stroke Size | 75 mm | 106 mm |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 8 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1450 kg | 2572 kg |
| Vehicle Length | 4900 mm | 5230 mm |
| Vehicle Width | 1850 mm | 2010 mm |
| Vehicle Height | 1330 mm | 1980 mm |
| Wheelbase Size | 2950 mm | 3030 mm |
| Fuel Tank Capacity | 89 L | 106 L |
