1952 Alfa Romeo AR 51 vs. 1972 Citroen SM
To start off, 1972 Citroen SM is newer by 20 year(s). Which means there will be less support and parts availability for 1952 Alfa Romeo AR 51. In addition, the cost of maintenance, including insurance, on 1952 Alfa Romeo AR 51 would be higher. At 2,669 cc (6 cylinders), 1972 Citroen SM is equipped with a bigger engine. In terms of performance, 1972 Citroen SM (173 HP @ 5500 RPM) has 110 more horse power than 1952 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 1972 Citroen SM should accelerate faster than 1952 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 1972 Citroen SM weights approximately 200 kg more than 1952 Alfa Romeo AR 51. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1952 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 1972 Citroen SM. In wet, icy, snow, or gravel driving conditions, 1952 Alfa Romeo AR 51 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.
Compare all specifications:
1952 Alfa Romeo AR 51 | 1972 Citroen SM | |
Make | Alfa Romeo | Citroen |
Model | AR 51 | SM |
Year Released | 1952 | 1972 |
Engine Position | Front | Front |
Engine Size | 1884 cc | 2669 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 63 HP | 173 HP |
Engine RPM | 4400 RPM | 5500 RPM |
Engine Bore Size | 82.6 mm | 87 mm |
Engine Stroke Size | 88 mm | 75 mm |
Engine Compression Ratio | 7.0:1 | 9.0:1 |
Drive Type | 4WD | Front |
Number of Seats | 2 seats | 2 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1250 kg | 1450 kg |
Vehicle Length | 3530 mm | 4900 mm |
Vehicle Width | 1580 mm | 1850 mm |
Vehicle Height | 1830 mm | 1330 mm |
Wheelbase Size | 2210 mm | 2960 mm |
Fuel Tank Capacity | 77 L | 25 L |