2006 BMW Z4 vs. 1973 Citroen SM
To start off, 2006 BMW Z4 is newer by 33 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 3,246 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (338 HP @ 7900 RPM) has 161 more horse power than 1973 Citroen SM. (177 HP @ 6500 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1973 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 5 kg more than 1973 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW Z4 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 2006 BMW Z4. 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:
| 2006 BMW Z4 | 1973 Citroen SM | |
| Make | BMW | Citroen |
| Model | Z4 | SM |
| Year Released | 2006 | 1973 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2965 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 338 HP | 177 HP |
| Engine RPM | 7900 RPM | 6500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1480 kg |
| Vehicle Length | 4120 mm | 4900 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1310 mm | 1330 mm |
| Wheelbase Size | 2500 mm | 2960 mm |
