1971 Citroen SM vs. 2004 Rover 45
To start off, 2004 Rover 45 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 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 50 more horse power than 2004 Rover 45. (108 HP @ 6000 RPM). In normal driving conditions, 1971 Citroen SM should accelerate faster than 2004 Rover 45. With that said, vehicle weight also plays an important factor in acceleration. 1971 Citroen SM weights approximately 270 kg more than 2004 Rover 45. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1971 Citroen SM (235 Nm @ 4000 RPM) has 97 more torque (in Nm) than 2004 Rover 45. (138 Nm @ 4500 RPM). This means 1971 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 2004 Rover 45.
Compare all specifications:
| 1971 Citroen SM | 2004 Rover 45 | |
| Make | Citroen | Rover |
| Model | SM | 45 |
| Year Released | 1971 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 1588 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 158 HP | 108 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 235 Nm | 138 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 87 mm | 80 mm |
| Engine Stroke Size | 75 mm | 79 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1450 kg | 1180 kg |
| Vehicle Length | 4900 mm | 4370 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1330 mm | 1400 mm |
| Wheelbase Size | 2950 mm | 2630 mm |
| Fuel Tank Capacity | 89 L | 55 L |
