2005 Audi A4 vs. 1973 Citroen SM
To start off, 2005 Audi A4 is newer by 32 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 10 more horse power than 2005 Audi A4. (170 HP) In normal driving conditions, 1973 Citroen SM should accelerate faster than 2005 Audi A4.
Because 2005 Audi A4 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, 2005 Audi A4 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, 1973 Citroen SM (233 Nm) has 8 more torque (in Nm) than 2005 Audi A4. (225 Nm). This means 1973 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 1973 Citroen SM | |
| Make | Audi | Citroen |
| Model | A4 | SM |
| Year Released | 2005 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1786 cc | 2670 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 170 HP | 180 HP |
| Torque | 225 Nm | 233 Nm |
| Engine Bore Size | 81 mm | 86.9 mm |
| Engine Stroke Size | 86 mm | 74.9 mm |
| Engine Compression Ratio | 9.3:1 | 9.0:1 |
| Drive Type | 4WD | Front |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4550 mm | 4920 mm |
| Vehicle Width | 1770 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1330 mm |
| Wheelbase Size | 2770 mm | 2960 mm |
