2007 Alfa Romeo 159 vs. 1973 Citroen SM
To start off, 2007 Alfa Romeo 159 is newer by 34 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 2,670 cc (6 cylinders), 1973 Citroen SM is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (180 HP) has 22 more horse power than 2007 Alfa Romeo 159. (158 HP) In normal driving conditions, 1973 Citroen SM should accelerate faster than 2007 Alfa Romeo 159.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 1973 Citroen SM (233 Nm) has 43 more torque (in Nm) than 2007 Alfa Romeo 159. (190 Nm). This means 1973 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 159.
Compare all specifications:
| 2007 Alfa Romeo 159 | 1973 Citroen SM | |
| Make | Alfa Romeo | Citroen |
| Model | 159 | SM |
| Year Released | 2007 | 1973 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1859 cc | 2670 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 158 HP | 180 HP |
| Torque | 190 Nm | 233 Nm |
| Engine Bore Size | 86 mm | 86.9 mm |
| Engine Stroke Size | 80 mm | 74.9 mm |
| Engine Compression Ratio | 11.3:1 | 9.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4670 mm | 4920 mm |
| Vehicle Width | 1840 mm | 1840 mm |
| Vehicle Height | 1460 mm | 1330 mm |
| Wheelbase Size | 2710 mm | 2960 mm |
