2006 BMW 630 vs. 1973 Citroen SM
To start off, 2006 BMW 630 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 2,996 cc (6 cylinders), 2006 BMW 630 is equipped with a bigger engine. In terms of performance, 2006 BMW 630 (254 HP) has 74 more horse power than 1973 Citroen SM. (180 HP). In normal driving conditions, 2006 BMW 630 should accelerate faster than 1973 Citroen SM.
Because 2006 BMW 630 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 630. 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. Let's talk about torque, 2006 BMW 630 (300 Nm) has 67 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2006 BMW 630 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 2006 BMW 630 | 1973 Citroen SM | |
| Make | BMW | Citroen |
| Model | 630 | SM |
| Year Released | 2006 | 1973 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 254 HP | 180 HP |
| Torque | 300 Nm | 233 Nm |
| Engine Bore Size | 85 mm | 86.9 mm |
| Engine Stroke Size | 88 mm | 74.9 mm |
| Engine Compression Ratio | 10.7:1 | 9.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4830 mm | 4920 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1380 mm | 1330 mm |
| Wheelbase Size | 2790 mm | 2960 mm |
