1973 Citroen SM vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 36 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 3,599 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (473 HP @ 6000 RPM) has 302 more horse power than 1973 Citroen SM. (171 HP @ 5500 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1973 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 80 kg more than 1973 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 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, 2009 Porsche 911 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, 2009 Porsche 911 (620 Nm @ 2700 RPM) has 383 more torque (in Nm) than 1973 Citroen SM. (237 Nm @ 4000 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
1973 Citroen SM | 2009 Porsche 911 | |
Make | Citroen | Porsche |
Model | SM | 911 |
Year Released | 1973 | 2009 |
Body Type | Coupe | Coupe |
Engine Position | Front | Rear |
Engine Size | 2670 cc | 3599 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | V | boxer |
Horse Power | 171 HP | 473 HP |
Engine RPM | 5500 RPM | 6000 RPM |
Torque | 237 Nm | 620 Nm |
Torque RPM | 4000 RPM | 2700 RPM |
Engine Bore Size | 87 mm | 100 mm |
Engine Stroke Size | 75 mm | 76.4 mm |
Engine Compression Ratio | 9.0:1 | 9.4:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | Front | 4WD |
Number of Seats | 2 seats | 2 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1450 kg | 1530 kg |
Vehicle Length | 4900 mm | 4440 mm |
Vehicle Width | 1850 mm | 1300 mm |
Vehicle Height | 1330 mm | 1840 mm |
Wheelbase Size | 2960 mm | 2360 mm |
Fuel Tank Capacity | 25 L | 64 L |