2007 Audi A6 vs. 1973 Citroen SM
To start off, 2007 Audi A6 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 3,122 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (252 HP) has 72 more horse power than 1973 Citroen SM. (180 HP). In normal driving conditions, 2007 Audi A6 should accelerate faster than 1973 Citroen SM.
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, 2007 Audi A6 (330 Nm) has 97 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 2007 Audi A6 | 1973 Citroen SM | |
| Make | Audi | Citroen |
| Model | A6 | SM |
| Year Released | 2007 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3122 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 252 HP | 180 HP |
| Torque | 330 Nm | 233 Nm |
| Engine Bore Size | 84.5 mm | 86.9 mm |
| Engine Stroke Size | 92.8 mm | 74.9 mm |
| Engine Compression Ratio | 13.0:1 | 9.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4920 mm | 4920 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1330 mm |
| Wheelbase Size | 2850 mm | 2960 mm |
