Approaching his IndyCar debut at 45 years old, Jimmie Johnson is an old rookie, but he’s not just any old rookie. In a NASCAR Cup career that spanned 20 years and 686 races, he won seven championships 83 race wins. Now he’s about to embark on an IndyCar career of currently indeterminate length, with Chip Ganassi Racing-Honda.
The active Scott Dixon and retired Dario Franchitti, with 10 ...Keep reading

Source: Jimmie Johnson: The NASCAR legend's IndyCar challenge