Just under a year after Historic Sportscar Racing (HSR) and North American food industry giant Mission Foods established a long-term partnership that includes Mission's sponsorship of The HSR Classic Endurance Championship presented by Mission Foods, officials from both companies announced an expansion of the agreement with the introduction of the...

Sports car reporters Marshall Pruett and Graham Goodwin have plenty to tackle in a catch-up episode after technical issues torpedoed last week's recording. It's IMSA at Mid-Ohio and the FIA WEC at Spa, with crashes, flying cars and big BoP issues across both series and their top prototypes, and lots...

IMSA's WeatherTech SportsCar Championship teams are now responsible for choosing their own refueling hose restrictors. The change in policy comes in the wake of the series' post-Daytona decision to mandate a minimum refueling time to fill an empty tank in each of its three classes. Starting this weekend, GTD cars...

Action Express Racing retained the lead as the 14th hour of racing at the Rolex 24 at Daytona was completed, with Eric Curran taking over from Mike Conway.Curran held a six-second advantage over Felipe Albuquerque in the No.5 Mustang Sampling Racing Cadillac as the lead two Cadillacs saw Acura Team...

Pirelli World Challenge president and CEO Greg Gill saluted Cadillac's contribution to the championship following the GM brand's decision to withdraw from the series to focus on Prototypes."We, at WC Vision, wish the Cadillac brand all the best in its future racing endeavors," said Gill in a statement."Cadillac has been...

IMSA's visit to Long Beach for this weekend's WeatherTech SportsCar Championship race will be radically altered by the inclusion of the GT Daytona class.As IMSA's biggest contributor in terms of car count, the popular Pro-Am GTD category and its GT3-spec cars will tip the balance of the WeatherTech Championship event...

Bentley hasn't been involved with prototype sports car racing since the Le Mans-winning Speed 8 of 2001-'03, seen here at the Goodwood Festival of Speed. But a new chapter could be starting. (LAT photo) Bentley motorsports director Brian Gush has been a vocal supporter of IMSA's new-for-2017 P2-based plans, and...

IMSA and iRacing.com today announced the creation of the IMSA iRacing.com Online SportsCar Championship. The online racing series features iRacing’s digital versions of Prototypes and GT cars competing on laser-scanned versions of Daytona International Speedway, Sebring International Raceway, Watkins Glen International and many other tracks on IMSA’s TUDOR United SportsCar...

Extreme Speed Motorsports' Ryan Dalziel tells The RACER Channel about his experiences driving three different prototypes at Circuit of The Americas and their relative strengths and weaknesses.

Alongside Sunday's live coverage of the Mobil 1 SportsCar Grand Prix presented by Hawk Performance at 2 p.m. on Fox Sports 1, be sure to check out Mazda Motorsports live streaming content. The green flag for the webcast drops at 1:30 p.m. ET with a 30-minute pre-show featuring behind-the-scenes footage...