A 1965 Shelby 427 Competition Cobra realised $2.2m in RM Sotheby's Arizona sale on January 29.
The car is one of only 23 made and was originally outfitted for civilian use on the road.
 Only 23 Shelby 427 Competition Cobras were built |
However, it proved too powerful for its original owner and was sold on. From 1967 onwards it was entered in a series of races, snatching victory in both the 1968 SCCA Championships and the 1971 Eastern Canadian Endurance Championships.
In recent years it has been a regular fixture at top US concours and rallies.
As the auction house explained in the run-up to the sale: "The 427 Competition Cobras have always been the most desirable Cobras ever built, and ownership of one of these true 427 Competition Cobras is a dream of many Shelby enthusiasts.
"With an unmatched competition history and offered in its current state as a dual-purpose vintage racer and grand tourer, CSX 3010 is indeed the ultimate enthusiast's Cobra."
A 1939 SS 100 Jaguar roadster, with coachwork by Belgian firm Van den Plas, sold for $1.4m.
The model's eye-catching looks have been much admired over the years. Van den Plas bought the chassis before the war and was forced to suspend works until hostilities were over.
After its completion, the model was displayed at the 1948 Brussels Motor Show. Since then it has passed through a number of top European and American collections.
A Duesenberg Model J led the January 28 portion of the sale.
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