2007 Audi S8 vs. 1973 Citroen SM
To start off, 2007 Audi S8 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 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP) has 264 more horse power than 1973 Citroen SM. (180 HP). In normal driving conditions, 2007 Audi S8 should accelerate faster than 1973 Citroen SM.
Because 2007 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 1973 Citroen SM. In wet, icy, snow, or gravel driving conditions, 2007 Audi S8 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, 2007 Audi S8 (540 Nm) has 307 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM. 2007 Audi S8 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. 2007 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi S8 | 1973 Citroen SM | |
| Make | Audi | Citroen |
| Model | S8 | SM |
| Year Released | 2007 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2670 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 444 HP | 180 HP |
| Torque | 540 Nm | 233 Nm |
| Engine Bore Size | 84.5 mm | 86.9 mm |
| Engine Stroke Size | 92.8 mm | 74.9 mm |
| Engine Compression Ratio | 12.5:1 | 9.0:1 |
| Drive Type | AWD | Front |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5070 mm | 4920 mm |
| Vehicle Width | 1900 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1330 mm |
| Wheelbase Size | 2950 mm | 2960 mm |
