saw some limited use; a term that identified the machines as larger and faster than junior formulae such as sprints and midgets. That term quickly disappeared from use and was instead largely used for Sprint cars. In the post-World War II era, the term "Speedway Cars" saw brief use, a loosely descriptive term, distinguishing the machines as those driven at the Indianapolis Motor Speedway and other major speedways, as opposed to those driven at smaller tracks, for instance. However, the term "Champ Cars" prevailed as the preferred moniker. In most years since the USAC era, the term "Indy cars" (after the Indy 500) has taken over as the preferred moniker. Apropos to that, when CART was founded in 1979, its acronym stood for Championship Auto Racing Teams, which reflected the historical use of the term "Championship Car". Soon thereafter, CART started exclusively marketing itself with the two-word "Indy car" term, advertising itself as the "CART Indy Car World Series". Through the 1980s, the term "Indy car" referred to machines used to compete in events sanctioned by CART, as well as the machines competing in the Indianapolis 500 (singly sanctioned by USAC). In 1992, the CamelCase term "IndyCar" was trademarked by IMS, Inc. It was licensed to CART through 1997. After the inception of the Indy Racing League in 1996, the terms of the contract were voided after a lawsuit. As part of the settlement, the term was shelved by a six-year non-use agreement. Following the settlement, and the lack of direct connection to the Indianapolis 500, CART decided to revert to the former term. It re-branded itself as Champ Car and the machines were referred to again as "Champ cars". Complicating the situation resulting from the open-wheel split, Champ Car races held outside the United States were still permitted to use the Indy moniker (e.g., Molson Indy Toronto and Lexmark Indy 300). Foreign venue promoters took advantage of the marketing power of the Indy 500 name for their events, even though the Champ Car series they were promoting no longer had any ties to that race. The exceptions created confusion, and Champ Car gradually phased out the usage to distance itself further from the IRL. After the settlement expired in 2003, the IndyCar term was brought back. The Indy Racing League was re-branded as the "IRL IndyCar Series". The machines in the series were also referred to as "Indy cars".