Champ Car (CART) and the Indy Racing League fought tooth and nail for years, trying to kill each other. Instead of working together to promote open wheel racing in the U.S. (each series had its own niche), each wanted the other dead. F1 has never been all that popular in the U.S., but CC and the IRL got greedy, and blew the chance to create a thriving open wheel environment here. The IRL - now called IndyCar - killed off CART, but it was out of greed and stupidity. F1 has its merits, and so did both U.S. series, once upon a time. F1 continues to enjoy world-wide popularity, but not so much in the U.S.