JohnForceNHRA Las Vegas Funny Car Winner John Force has won 16 championships the last coming in 2013 at the age of 64. Force’s win Sunday in Las Vegas came at the expense of his daughter Courtney. His legendary excellence has been the subject of doctors who want to know why a man his age can still beat his children as well as anyone else in the Funny Car field. John explained some of their findings and why those findings have his undivided attention. Listen…