Cadillac leads the IMSA WeatherTech SportsCar Championships GTP while Porsche leads the IMSA Michelin Endurance Cup GTP ahead of Road America.

Dillmann-Clarke in #43 Inter Europol Competition won the Chevrolet Grand Prix at Canadian Tire Motorsport Park while #14 Vasser Sullivan’s Lexus scored its second win this season in GTD PRO as did Winward’s Mercedes-AMG in GTD.

Inter Europol, Paul Miller Racing #1 BMW and Heart of Racing Aston Martin Vantage scored pole at CMTP

Cadillac Whelen, Acura and JDC Miller Porsche on The Glen podium. BMW fourth.

Cadillac Whelen #31 dominated and wins. AO Racing wins LMP2, Vasser Sullivan GTD PRO and Manthey GTD.

Already two GTP out of race after 33 minutes racing: #23 Heart of Racing Aston Martin Valkyrie and #60 Meyer Shank Racing Acura ARX-06.

Aitken did set new GTP track qualifying record during GTP qualifying session with a 1:31.284. Tom Blomqvist prevented a Cadillac one-two

Laurin Heinrich, in #5 JDC-Miller Motorsports Porsche 963, did set the fastest lap of combined sessions for Sahlen’s Six Hours of The Glen. Eight drivers improved their practice 1 fastest lap.

Jack Aitken did set the benchmark in the first IMSA WeatherTech SportsCar Championship practice session of the weekend at Watkins Glen International ahead of both Acuras

Porsche dominates IMSA Michelin Endurance GTP Cups and Cadillac GTP WeatherTech Sportscar championships

Ricky Taylor, driver of the #10 Cadillac Wayne Taylor Racing, was a guest on an IMSA media teleconference to discuss the upcoming Sahlen's Six Hours of The Glen.

Corvette Racing won their home race Saturday in the GTD PRO class victory in the Chevrolet Detroit Sports Car Classic. Ford Racing records P3.

Cadillac Racing dominated in Detroit with the #31 Whelen Cadillac V-Series.R winning and #10 Cadillac Wayne Taylor Racing V-Series.R finishing third.

Both Cadillac Racing and Corvette Racing locked out the front row qualifying ahead of the Chevrolet Detroit Sports Car Classic.

Cadillac Racing aims to win home race after six consecutive podiums and Cadillac DPi four races wins at Detroit.

JDC-Miller MotorSports won the IMSA race at Laguna Seca thanks to Laurin Heinrich at the wheel of the #5 Porsche 963 securing victory on the final lap of the race.

Louis Delétraz and the #40 Cadillac Wayne Taylor Racing V-Series.R won the pole for Sunday's Monterey Sportscar Championship at Laguna Seca Raceway.

At Laguna Seca Raceway, the two Porsche 963 fielded by the Porsche Penske Motorsport works team feature a racing livery that pays homage to the iconic Apple Computer spectrum livery from the 1980 Porsche 935 that raced at Le Mans.

Acura finally found victory lane at the Acura Grand Prix of Long Beach, with Nick Yelloly and Renger van der Zande delivering a win at Acura’s home race.

Nick Yelloly puts the #93 Acura ARX-06 on pole position for the Acura Grand Prix of Long Beach.