1964 Austin A 40 vs. 1971 Citroen SM
To start off, 1971 Citroen SM is newer by 7 year(s). Which means there will be less support and parts availability for 1964 Austin A 40. In addition, the cost of maintenance, including insurance, on 1964 Austin A 40 would be higher. At 2,670 cc (6 cylinders), 1971 Citroen SM is equipped with a bigger engine. In terms of performance, 1971 Citroen SM (158 HP @ 5500 RPM) has 111 more horse power than 1964 Austin A 40. (47 HP @ 5100 RPM) In normal driving conditions, 1971 Citroen SM should accelerate faster than 1964 Austin A 40. With that said, vehicle weight also plays an important factor in acceleration. 1971 Citroen SM weights approximately 690 kg more than 1964 Austin A 40. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1964 Austin A 40 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 1964 Austin A 40. 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, 1971 Citroen SM (235 Nm @ 4000 RPM) has 153 more torque (in Nm) than 1964 Austin A 40. (82 Nm @ 2500 RPM). This means 1971 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 1964 Austin A 40.
Compare all specifications:
1964 Austin A 40 | 1971 Citroen SM | |
Make | Austin | Citroen |
Model | A 40 | SM |
Year Released | 1964 | 1971 |
Engine Position | Front | Front |
Engine Size | 1098 cc | 2670 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 47 HP | 158 HP |
Engine RPM | 5100 RPM | 5500 RPM |
Torque | 82 Nm | 235 Nm |
Torque RPM | 2500 RPM | 4000 RPM |
Engine Bore Size | 64.6 mm | 87 mm |
Engine Stroke Size | 83.7 mm | 75 mm |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | Front |
Number of Doors | 3 doors | 2 doors |
Vehicle Weight | 760 kg | 1450 kg |
Vehicle Length | 3690 mm | 4900 mm |
Vehicle Width | 1520 mm | 1850 mm |
Vehicle Height | 1450 mm | 1330 mm |
Wheelbase Size | 2220 mm | 2950 mm |
Fuel Tank Capacity | 29 L | 89 L |