Original: Budweiser is the official beer of NHRA and was the official beer of NASCAR until 2007. In 2008, Anheuser-Busch became Kasey Kahne's primary sponsor, and has also sponsored many races, including the Budweiser Shootout, and previously The Bud at the Glen, Budweiser 500, and Budweiser 400.
Simplified: Budweiser is a popular American beer made by the Anheuser-Busch company.