2005 Chevrolet Impala vs. 1971 Citroen SM
To start off, 2005 Chevrolet Impala is newer by 34 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 3,786 cc (6 cylinders), 2005 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2005 Chevrolet Impala (240 HP @ 5600 RPM) has 82 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM). In normal driving conditions, 2005 Chevrolet Impala should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Impala weights approximately 167 kg more than 1971 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2005 Chevrolet Impala (380 Nm) has 145 more torque (in Nm) than 1971 Citroen SM. (235 Nm). This means 2005 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM. 2005 Chevrolet Impala 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. 2005 Chevrolet Impala will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Chevrolet Impala | 1971 Citroen SM | |
| Make | Chevrolet | Citroen |
| Model | Impala | SM |
| Year Released | 2005 | 1971 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3786 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 240 HP | 158 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 380 Nm | 235 Nm |
| Engine Bore Size | 96 mm | 87 mm |
| Engine Stroke Size | 86 mm | 75 mm |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1617 kg | 1450 kg |
| Vehicle Length | 5090 mm | 4900 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1330 mm |
| Wheelbase Size | 2830 mm | 2950 mm |
| Fuel Tank Capacity | 64 L | 89 L |
