The skies are clear and the temperatures perfect as Arizona Auction kicks into another gear heading into the weekend. It's preview day for RM Sotheby's at the Arizona Biltmore for their 23rd annual Arizona sale.Returning to the Biltmore after a one year hiatus, the 78-lot docket for RM's Arizona sale...

There are few team and manufacturer associations more rooted than that of flying Lizard Motorsports and Porsche. Whether it was Grand-Am, IMSA or even the 24 Hours of Le Mans, for a decade Flying Lizard and Porsche were synonomous. For the past few years, though, the team was racing Audis...

British GT champion Jonny Adam will contest next year's Rolex 24 at Daytona in a leading Prototype after winning the 2015 edition of the Sunoco Challenge.Fuel supplier Sunoco operates a season-long competition in which drivers in selected British national categories score points based on qualifying and race results. Factory Aston...

June 28, 2015 (Watkins Glen, N.Y.) – Sunday’s Six Hours of the Glen, one of North America’s most important endurance races, featured cold temperatures and intense rain which at one point put the endurance race under red flag conditions. Not only was the Six Hours of the Glen the mid-point...

Relive the thrilling moments from 63rd Mobil 1 Twelve Hours of Sebring Fueled by Fresh From Florida, the second race of the TUDOR Championship season. All 12 hours of FOX Sports and IMSA.com coverage can be streamed on the TUDOR United SportsCar Championship YouTube channel, as well as with the...

Enjoy the full, commercial-free broadcast from Saturday's IMSA TUDOR United SportsCar Championship finale in 3 segments:

Related StoriesThe new Ligier JS P2-Honda of OAK Racing carried on where it left off in qualifying by topping the time sheets in race day warm-up for the United Sports Car Championship. Gustavo Yacaman lapped the 3.427-mile course in Austin, Tx., in 1min58.808sec on its fourth of nine laps completed...

Reigning GTE class champion Johnny Mowlem will return to the European Le Mans Series in the prototype ranks with Greaves Motorsport at Paul Ricard later this month.Mowlem, who has been out of a ride since the closure of the Ram Ferrari team with which he and Matt Griffin claimed the...

The Ligier LMP2 coupe will make its United SportsCar Championship debut in next month's Circuit of The Americas round with HPD power. The French OAK Racing team has confirmed that the Ligier JSP2 built by sister company Onroak Automotive will be on the grid for the penultimate TUDOR Championship round...

The 8Star Motorsports sports car team is planning to move into open-wheels for the first time with an attack on next year's revamped Indy Lights Championship.The team, which was established ahead of last season by Venezuelan Enzo Potolicchio, is aiming to join the series when the new Dallara-AER IL-15 one-make...