2007 Champ Car World Series

The 2007 Champ Car World Series season was the fourth and final season of the Champ Car World Series, and the 29th season of the series dating back to the 1979 formation of Championship Auto Racing Teams (CART). It began on April 8, 2007 and ended on November 11 after 14 races. Unbeknownst at the time, this would end up being the final contested season of Champ Car, as the following February, the series unified with the Indy Racing League (IRL), marking the end of the Champ Car World Series for good.

French driver Sébastien Bourdais entered the season as the defending champion, and went on to score his fourth consecutive title, becoming the first driver in Champ Car and American open-wheel racing history to do so. It was his final year in the series before moving on to Formula 1, regardless of the subsequent unification of the sport. It also marked the last time that a driver of an American open-wheel championship clinched the title before the final race of the season until 2023, when Alex Palou won the IndyCar title. As of 2025, the 2007 Champ Car season remains the only major American open-wheel racing series season in history not to feature any events on oval tracks with all rounds during the season taking place on road courses and street circuits.

The season also saw the series debut a new spec chassis, the Panoz DP01, which replaced the Lola B02/00 that had been used in the CART/Champ Champ series since 2002 and which had been the spec series chassis used by all Champ Car teams during the 2005 and 2006 seasons. Due to the 2008 reunification this also turned out to be the only full season of usage for DP01, though it would be used for one final time for the "Champ Car finale" at Long Beach in 2008 before being retired. This was also the last full season of involvement in American-open wheel racing for Cosworth, whose XFE turbo-V8 had been the spec engine for the series since 2003. Cosworth had been providing engines in American open-wheel racing since 1975.