1999 Audi A4 vs. 1972 Citroen SM
To start off, 1999 Audi A4 is newer by 27 year(s). Which means there will be less support and parts availability for 1972 Citroen SM. In addition, the cost of maintenance, including insurance, on 1972 Citroen SM would be higher. At 2,668 cc (6 cylinders), 1972 Citroen SM is equipped with a bigger engine. In terms of performance, 1972 Citroen SM (180 HP) has 57 more horse power than 1999 Audi A4. (123 HP) In normal driving conditions, 1972 Citroen SM should accelerate faster than 1999 Audi A4.
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, 1972 Citroen SM (231 Nm) has 58 more torque (in Nm) than 1999 Audi A4. (173 Nm). This means 1972 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 1972 Citroen SM | |
| Make | Audi | Citroen |
| Model | A4 | SM |
| Year Released | 1999 | 1972 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2668 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 180 HP |
| Torque | 173 Nm | 231 Nm |
| Engine Bore Size | 81 mm | 86.9 mm |
| Engine Stroke Size | 86.4 mm | 74.9 mm |
| Engine Compression Ratio | 10.3:1 | 9.0:1 |
| Top Speed | 205 km/hour | 218 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4480 mm | 4920 mm |
| Vehicle Width | 1740 mm | 1840 mm |
| Vehicle Height | 1420 mm | 1330 mm |
| Wheelbase Size | 2520 mm | 2960 mm |
