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 (300 HP @ 4400 RPM) has 123 more horse power than 1973 Citroen SM. (177 HP @ 6500 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1973 Citroen SM.
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 | 2965 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 177 HP | 300 HP |
| Engine RPM | 6500 RPM | 4400 RPM |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4900 mm | 6570 mm |
| Vehicle Width | 1850 mm | 2450 mm |
| Vehicle Height | 1330 mm | 1970 mm |
| Wheelbase Size | 2960 mm | 4250 mm |
