1972 Citroen SM vs. 1992 Porsche 928
To start off, 1992 Porsche 928 is newer by 20 year(s). Which means there will be less support and parts availability for 1972 Citroen SM. In addition, the cost of maintenance, including insurance, on 1972 Citroen SM would be higher. At 5,396 cc (8 cylinders), 1992 Porsche 928 is equipped with a bigger engine. In terms of performance, 1992 Porsche 928 (346 HP @ 5700 RPM) has 173 more horse power than 1972 Citroen SM. (173 HP @ 5500 RPM) In normal driving conditions, 1992 Porsche 928 should accelerate faster than 1972 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1992 Porsche 928 weights approximately 170 kg more than 1972 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1992 Porsche 928 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1992 Porsche 928. However, in wet, icy, snow, or gravel driving conditions, 1972 Citroen SM, being front wheel drive (FWD), will offer much better control with better grip. 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, 1992 Porsche 928 (500 Nm @ 4250 RPM) has 263 more torque (in Nm) than 1972 Citroen SM. (237 Nm @ 4000 RPM). This means 1992 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1972 Citroen SM.
Compare all specifications:
| 1972 Citroen SM | 1992 Porsche 928 | |
| Make | Citroen | Porsche |
| Model | SM | 928 |
| Year Released | 1972 | 1992 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2669 cc | 5396 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 173 HP | 346 HP |
| Engine RPM | 5500 RPM | 5700 RPM |
| Torque | 237 Nm | 500 Nm |
| Torque RPM | 4000 RPM | 4250 RPM |
| Engine Bore Size | 87 mm | 100 mm |
| Engine Stroke Size | 75 mm | 85.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1620 kg |
| Vehicle Length | 4900 mm | 4450 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1330 mm | 1320 mm |
| Wheelbase Size | 2960 mm | 2510 mm |
| Fuel Tank Capacity | 25 L | 86 L |
