Shelby after Shelby

A Shelby owner prepares his car for track time at the 6th annual Shelby Bash at Spring Mountain Motorsports Ranch in Pahrump, NV.  (David Undercoffler / Los Angeles Times)

From left to right: a 2012 Ford Mustang Boss 302, a 1965 Shelby GT350, and a 2013 Shelby GT350 convertible await their turn on the track during the 6th annual Shelby Bash at Spring Mountain Motorsports Ranch in Pahrump, NV.  (David Undercoffler / Los Angeles Times)

A cardboard cutout of Carroll Shelby watches over several original and notable Shelby Cobra¿s at Shelby American¿s museum, located inside the company¿s headquarters in Las Vegas, NV.  (David Undercoffler / Los Angeles Times)

A pair of recently-built continuation Shelby Cobras sit in the Shelby American factory in Las Vegas, NV.  (David Undercoffler / Los Angeles Times)

A Ford Mustang convertible is seen in the middle of its conversion to a Shelby Mustang, at the Shelby American factory in Las Vegas, NV.  (David Undercoffler / Los Angeles Times)

Actor Steve McQueen, left, and Carroll Shelby stand by McQueen’s Ford-Cobra roadster in June 1963.  (Dick Stroebel / Associated Press)

Carroll Shelby poses in front of his Shelby Series 1 sports cars at his plant in Las Vegas in October 2000.  (K.M. Cannon / Associated Press)

Charles Wallace, at wheel, and Carroll Shelby in Sebring, Fla., in March 1954.  (James P. Kerlin / Associated Press)

Carroll Shelby on the Le Mans circuit in France in June 1959. With his co-driver, Roy Salvadori, Shelby won the event, averaging 112.4 miles per hour.  (Jacques Marqueton / Associated Press)