1974 Citroen SM vs. 1999 Porsche 911
To start off, 1999 Porsche 911 is newer by 25 year(s). Which means there will be less support and parts availability for 1974 Citroen SM. In addition, the cost of maintenance, including insurance, on 1974 Citroen SM would be higher. At 3,600 cc (6 cylinders), 1999 Porsche 911 is equipped with a bigger engine. In terms of performance, 1999 Porsche 911 (414 HP @ 6200 RPM) has 244 more horse power than 1974 Citroen SM. (170 HP @ 5500 RPM) In normal driving conditions, 1999 Porsche 911 should accelerate faster than 1974 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1999 Porsche 911 weights approximately 135 kg more than 1974 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1974 Citroen SM. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 Porsche 911 (560 Nm @ 2700 RPM) has 323 more torque (in Nm) than 1974 Citroen SM. (237 Nm @ 4000 RPM). This means 1999 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1974 Citroen SM.
Compare all specifications:
1974 Citroen SM | 1999 Porsche 911 | |
Make | Citroen | Porsche |
Model | SM | 911 |
Year Released | 1974 | 1999 |
Body Type | Coupe | Coupe |
Engine Position | Front | Rear |
Engine Size | 2670 cc | 3600 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | V | boxer |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 170 HP | 414 HP |
Engine RPM | 5500 RPM | 6200 RPM |
Torque | 237 Nm | 560 Nm |
Torque RPM | 4000 RPM | 2700 RPM |
Engine Bore Size | 87.1 mm | 100 mm |
Engine Stroke Size | 75 mm | 76.4 mm |
Engine Compression Ratio | 9.0:1 | 9.4:1 |
Drive Type | Front | 4WD |
Number of Seats | 2 seats | 2 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1450 kg | 1585 kg |
Vehicle Length | 4900 mm | 4440 mm |
Vehicle Width | 1850 mm | 1840 mm |
Vehicle Height | 1330 mm | 1300 mm |
Wheelbase Size | 2960 mm | 2360 mm |
Fuel Tank Capacity | 25 L | 64 L |