1973 Citroen SM vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 34 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 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (312 HP) has 132 more horse power than 1973 Citroen SM. (180 HP) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1973 Citroen SM.
Because 2007 GMC Sierra 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, 2007 GMC Sierra 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 GMC Sierra (506 Nm) has 273 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM. 2007 GMC Sierra has automatic transmission and 1973 Citroen SM has manual transmission. 1973 Citroen SM will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 Citroen SM | 2007 GMC Sierra | |
| Make | Citroen | GMC |
| Model | SM | Sierra |
| Year Released | 1973 | 2007 |
| Body Type | Coupe | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 180 HP | 312 HP |
| Torque | 233 Nm | 506 Nm |
| Engine Bore Size | 86.9 mm | 102 mm |
| Engine Stroke Size | 74.9 mm | 92 mm |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4920 mm | 5720 mm |
| Vehicle Width | 1840 mm | 2440 mm |
| Vehicle Height | 1330 mm | 1930 mm |
| Wheelbase Size | 2960 mm | 3380 mm |
