1971 Citroen SM vs. 2011 Citroen C5
To start off, 2011 Citroen C5 is newer by 40 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 2,670 cc (6 cylinders), 1971 Citroen SM is equipped with a bigger engine. In terms of performance, 1971 Citroen SM (158 HP @ 5500 RPM) has 27 more horse power than 2011 Citroen C5. (131 HP @ 4000 RPM). In normal driving conditions, 1971 Citroen SM should accelerate faster than 2011 Citroen C5. With that said, vehicle weight also plays an important factor in acceleration. 2011 Citroen C5 weights approximately 143 kg more than 1971 Citroen SM.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2011 Citroen C5 (315 Nm @ 2000 RPM) has 80 more torque (in Nm) than 1971 Citroen SM. (235 Nm @ 4000 RPM). This means 2011 Citroen C5 will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM. 2011 Citroen C5 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. 2011 Citroen C5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Citroen SM | 2011 Citroen C5 | |
| Make | Citroen | Citroen |
| Model | SM | C5 |
| Year Released | 1971 | 2011 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 2179 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 158 HP | 131 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 235 Nm | 315 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Bore Size | 87 mm | 85 mm |
| Engine Stroke Size | 75 mm | 96 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1450 kg | 1593 kg |
| Vehicle Length | 4900 mm | 4760 mm |
| Vehicle Width | 1850 mm | 1780 mm |
| Vehicle Height | 1330 mm | 1520 mm |
| Wheelbase Size | 2950 mm | 2760 mm |
| Fuel Tank Capacity | 89 L | 68 L |
