2007 Audi Q7 vs. 1972 Citroen SM
To start off, 2007 Audi Q7 is newer by 35 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 4,163 cc (8 cylinders), 2007 Audi Q7 is equipped with a bigger engine. In terms of performance, 2007 Audi Q7 (346 HP @ 6800 RPM) has 173 more horse power than 1972 Citroen SM. (173 HP @ 5500 RPM). In normal driving conditions, 2007 Audi Q7 should accelerate faster than 1972 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi Q7 weights approximately 845 kg more than 1972 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 1972 Citroen SM. In wet, icy, snow, or gravel driving conditions, 2007 Audi Q7 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 Q7 (440 Nm @ 3500 RPM) has 203 more torque (in Nm) than 1972 Citroen SM. (237 Nm @ 4000 RPM). This means 2007 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 1972 Citroen SM.
Compare all specifications:
| 2007 Audi Q7 | 1972 Citroen SM | |
| Make | Audi | Citroen |
| Model | Q7 | SM |
| Year Released | 2007 | 1972 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2669 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 346 HP | 173 HP |
| Engine RPM | 6800 RPM | 5500 RPM |
| Torque | 440 Nm | 237 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 87 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Engine Compression Ratio | 12.5:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2295 kg | 1450 kg |
| Vehicle Width | 1990 mm | 1850 mm |
| Vehicle Height | 1740 mm | 1330 mm |
| Wheelbase Size | 3010 mm | 2960 mm |
| Fuel Tank Capacity | 100 L | 25 L |
