1973 Citroen SM vs. 1981 GMC Suburban
To start off, 1981 GMC Suburban is newer by 8 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 6,210 cc (8 cylinders), 1981 GMC Suburban is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (171 HP @ 5500 RPM) has 42 more horse power than 1981 GMC Suburban. (129 HP @ 3600 RPM). In normal driving conditions, 1973 Citroen SM should accelerate faster than 1981 GMC Suburban. With that said, vehicle weight also plays an important factor in acceleration. 1981 GMC Suburban weights approximately 945 kg more than 1973 Citroen SM.
Because 1981 GMC Suburban 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, 1981 GMC Suburban 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, 1981 GMC Suburban (326 Nm @ 2000 RPM) has 89 more torque (in Nm) than 1973 Citroen SM. (237 Nm @ 4000 RPM). This means 1981 GMC Suburban will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 1973 Citroen SM | 1981 GMC Suburban | |
| Make | Citroen | GMC |
| Model | SM | Suburban |
| Year Released | 1973 | 1981 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 6210 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 171 HP | 129 HP |
| Engine RPM | 5500 RPM | 3600 RPM |
| Torque | 237 Nm | 326 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | 4WD |
| Vehicle Weight | 1450 kg | 2395 kg |
| Vehicle Length | 4900 mm | 5480 mm |
| Vehicle Width | 1850 mm | 1950 mm |
| Vehicle Height | 1330 mm | 1800 mm |
| Wheelbase Size | 2960 mm | 3300 mm |
