1971 Citroen SM vs. 2011 GMC Envoy
To start off, 2011 GMC Envoy is newer by 40 year(s). Which means there will be less support and parts availability for 1971 Citroen SM. In addition, the cost of maintenance, including insurance, on 1971 Citroen SM would be higher. At 4,161 cc (6 cylinders), 2011 GMC Envoy is equipped with a bigger engine. In terms of performance, 2011 GMC Envoy (281 HP @ 6000 RPM) has 123 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM) In normal driving conditions, 2011 GMC Envoy should accelerate faster than 1971 Citroen SM.
Because 2011 GMC Envoy is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2011 GMC Envoy. However, in wet, icy, snow, or gravel driving conditions, 1971 Citroen SM, being front wheel drive (FWD), will offer much better control with better grip. 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, 2011 GMC Envoy (277 Nm @ 4600 RPM) has 42 more torque (in Nm) than 1971 Citroen SM. (235 Nm @ 4000 RPM). This means 2011 GMC Envoy will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM. 2011 GMC Envoy has automatic transmission and 1971 Citroen SM has manual transmission. 1971 Citroen SM will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 GMC Envoy will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Citroen SM | 2011 GMC Envoy | |
| Make | Citroen | GMC |
| Model | SM | Envoy |
| Year Released | 1971 | 2011 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 4161 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 158 HP | 281 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 235 Nm | 277 Nm |
| Torque RPM | 4000 RPM | 4600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4900 mm | 4870 mm |
| Vehicle Width | 1850 mm | 1900 mm |
| Vehicle Height | 1330 mm | 1830 mm |
| Wheelbase Size | 2950 mm | 2950 mm |
| Fuel Tank Capacity | 89 L | 83 L |
