IndyCar References IndyCar American organization Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Jimmie Johnson/ Later results, retirement, and return…year he began competing in IndyCar races. Read More…year he began competing in IndyCar races. Read More