2003 BMW X3 vs. 1973 Citroen SM
To start off, 2003 BMW X3 is newer by 30 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 2,995 cc (6 cylinders), 2003 BMW X3 is equipped with a bigger engine. In terms of performance, 2003 BMW X3 (201 HP) has 21 more horse power than 1973 Citroen SM. (180 HP). In normal driving conditions, 2003 BMW X3 should accelerate faster than 1973 Citroen SM.
Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1973 Citroen SM. In wet, icy, snow, or gravel driving conditions, 2003 BMW X3 will offer significantly more control. 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, 2003 BMW X3 (410 Nm) has 177 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2003 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM. 2003 BMW X3 has automatic transmission and 1973 Citroen SM has manual transmission. 1973 Citroen SM will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW X3 | 1973 Citroen SM | |
| Make | BMW | Citroen |
| Model | X3 | SM |
| Year Released | 2003 | 1973 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 201 HP | 180 HP |
| Torque | 410 Nm | 233 Nm |
| Engine Bore Size | 84 mm | 86.9 mm |
| Engine Stroke Size | 90 mm | 74.9 mm |
| Engine Compression Ratio | 17.0:1 | 9.0:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4570 mm | 4920 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1680 mm | 1330 mm |
| Wheelbase Size | 2730 mm | 2960 mm |
