1977 BMW 520 vs. 1973 Citroen SM
To start off, 1977 BMW 520 is newer by 4 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 2,965 cc (6 cylinders), 1973 Citroen SM is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (177 HP @ 6500 RPM) has 43 more horse power than 1977 BMW 520. (134 HP @ 4000 RPM) In normal driving conditions, 1973 Citroen SM should accelerate faster than 1977 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 520 weights approximately 85 kg more than 1973 Citroen SM.
Because 1977 BMW 520 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 1977 BMW 520. However, in wet, icy, snow, or gravel driving conditions, 1973 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.
Compare all specifications:
| 1977 BMW 520 | 1973 Citroen SM | |
| Make | BMW | Citroen |
| Model | 520 | SM |
| Year Released | 1977 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1951 cc | 2965 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 134 HP | 177 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Drive Type | Rear | Front |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1565 kg | 1480 kg |
| Vehicle Length | 4780 mm | 4900 mm |
| Vehicle Width | 1810 mm | 1850 mm |
| Vehicle Height | 1440 mm | 1330 mm |
| Wheelbase Size | 2840 mm | 2960 mm |
