2009 Buick LaCrosse vs. 1971 Citroen SM
To start off, 2009 Buick LaCrosse is newer by 38 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 3,791 cc (6 cylinders), 2009 Buick LaCrosse is equipped with a bigger engine. In terms of performance, 2009 Buick LaCrosse (200 HP) has 42 more horse power than 1971 Citroen SM. (158 HP). In normal driving conditions, 2009 Buick LaCrosse should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2009 Buick LaCrosse weights approximately 496 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, 2009 Buick LaCrosse (312 Nm @ 4000 RPM) has 77 more torque (in Nm) than 1971 Citroen SM. (235 Nm @ 4000 RPM). This means 2009 Buick LaCrosse will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM. 2009 Buick LaCrosse 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. 2009 Buick LaCrosse will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Buick LaCrosse | 1971 Citroen SM | |
| Make | Buick | Citroen |
| Model | LaCrosse | SM |
| Year Released | 2009 | 1971 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 200 HP | 158 HP |
| Torque | 312 Nm | 235 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1946 kg | 1450 kg |
| Vehicle Length | 5040 mm | 4900 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1330 mm |
| Wheelbase Size | 2810 mm | 2950 mm |
| Fuel Tank Capacity | 64 L | 89 L |
