1973 Citroen SM vs. 2009 Mazda 6
To start off, 2009 Mazda 6 is newer by 36 year(s). Which means there will be less support and parts availability for 1973 Citroen SM. In addition, the cost of maintenance, including insurance, on 1973 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1973 Citroen SM is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (171 HP @ 5500 RPM) has 24 more horse power than 2009 Mazda 6. (147 HP @ 6500 RPM). In normal driving conditions, 1973 Citroen SM should accelerate faster than 2009 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 1973 Citroen SM weights approximately 95 kg more than 2009 Mazda 6. 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, 1973 Citroen SM (237 Nm @ 4000 RPM) has 51 more torque (in Nm) than 2009 Mazda 6. (186 Nm @ 4000 RPM). This means 1973 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 2009 Mazda 6.
Compare all specifications:
| 1973 Citroen SM | 2009 Mazda 6 | |
| Make | Citroen | Mazda |
| Model | SM | 6 |
| Year Released | 1973 | 2009 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 1999 cc |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 147 HP |
| Engine RPM | 5500 RPM | 6500 RPM |
| Torque | 237 Nm | 186 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 87 mm | 87.5 mm |
| Engine Stroke Size | 75 mm | 83.1 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Drive Type | Front | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1355 kg |
| Vehicle Width | 1850 mm | 1800 mm |
| Wheelbase Size | 2960 mm | 2730 mm |
| Fuel Tank Capacity | 25 L | 64 L |
