Rahal Letterman Lanigan Racing (RLL) is an auto racing team that has participated in the IndyCar Series and the WeatherTech SportsCar Championship. Headquartered in Zionsville, Indiana and Hilliard, Ohio, it is co-owned by 1986 Indianapolis 500 winner Bobby Rahal, former television talk show host David Letterman, and businessman Mike Lanigan. The team won the 1992 CART Indy Car championship, and has won the Indianapolis 500 twice, first in 2004 with Buddy Rice and 2020 with Takuma Sato.