Carroll Shelby’s Personal 1966 Cobra Could Turn Out To Be The Most Expensive Ever Sold

A very desirable 1966 Shelby Cobra 427 Super Snake will cross the auction block at Barrett-Jackson’s Scottsdale sales event in March and it may turn out to be the most expensive Cobra ever sold.

The car in question is known as CSX 3015 and was commissioned by Carroll Shelby himself as the ultimate Cobra. In fact, Road & Track famously called it “The Cobra To End All Cobras” in 1968, and in 2007, it was sold for $5.5 million.

CSX 3015, which has an automatic transmission, is special for a number of reasons, including the fact that it features a pair of Paxton superchargers feeding dual Holley four-barrel carburetors that sit atop a cross-ram intake manifold. Fitting a pair of superchargers to the V8 necessitated the creation of a bespoke hood and back in its day, the Cobra delivered an unbelievable 800 hp.

Barrett-Jackson states that the car was originally one of just a handful of Competition Cobra Roadsters that were built and took part in a European promotional tour. It landed back in the U.S. in late 1966, which is when the two superchargers were fitted. Carroll Shelby personally drove the car to 190 mph (306 km/h).

After Shelby’s ownership, the car was purchased by songwriter Jimmy Webb in 1970. Webb owned it for more than two decades before it was seized and auctioned off by the IRS. It has since passed through the hands of various collectors and remains one of just two twin-supercharged Cobras ever built.