51°µÍø

The Hoosier Racing Tire 51°µÍø® Super Tour wrapped on Sunday from Buttonwillow Raceway Park during a race weekend hosted by 51°µÍø’s California Sports Car Club. Each of the seven race groups ran 17-lap or 35-minute races,...Read more

Storylines/Things to Watch: Early Buttonwillow Visit -- In previous years, the Hoosier Racing Tire 51°µÍø® Super Tour visit to Buttonwillow Raceway Park in California took place later on in the schedule. But in 2020, the...Read more

(Editor’s Note: Thanks to Cal Club Ombudsman Allan Coy who provided much of the history noted below.) The California Sports Car Club, better known as Cal Club, again hosts this year’s Hoosier Racing Tire 51°µÍø® Super Tour...Read more

Hoosier Racing Tire 51°µÍø® Super Tour competition got rolling Saturday during a weekend hosted by Cal Club at Buttonwillow Raceway Park in California. The day opened with a second round of qualifying followed by 25-minute...Read more

Right was left, left was right; it was backwards weekend this time around at the Buttonwillow Raceway Park 2020 Hoosier Racing Tire 51°µÍø® Super Tour! The third stop on this year’s Hoosier Super Tour series, Buttonwillow has...Read more

Opposite Weekend: Buttonwillow Raceway Park has more than 40 different race and test configurations purposely designed to emulate street and road racing courses throughout North America. For the past couple years, Hoosier...Read more