Matt Campbell topped the time charts to go quickest overall in the second and final day of GTP and LMP2 testing as the IMSA-sanctioned test at Sebring International Raceway wrapped up.

The very first Cadillac race cars ... Endurance Championship and the IMSA SportsCar Championship implemented a converging prototype category we now know as GTP. Under these regulations ...

Cadillac, and only Cadillac ... including a chassis partner, engine plans, and whether or not the car is also destined to race domestically in IMSA's GTP class, should be revealed over the ...

Cadillac, and only Cadillac ... including a chassis partner, engine plans, and whether or not the car is also destined to race domestically in IMSA's GTP class, should be revealed over the ...

V8 engines do seem to dominate, with Cadillac ... whether the program will extend to IMSA, but given LMDh’s dual eligibility, an entry in IMSA’s GTP class is more than likely.

IMSA stripped Tower Motorsports of its LMP2 class victory at the Rolex 24 at Daytona because of a technical infraction. The win was awarded to runner-up United Autosports. United is co-owned by ...

The owner of this Cadillac Escalade ESV suddenly ... and he identified the location of the noise as front right. The knocking would not go away even if the engine warmed up. He even suspected ...

It was the No. 7 full-time IMSA entry that won, making it back-to-back victories for that car despite a different driver lineup. “What an incredible day for the entire Porsche Penske Motorsport ...

Farfus already had been penalized by IMSA before the incident for blocking ... The No. 60 Meyer Shank Racing Acura ARX-06 was in fourth and the last GTP car on the lead lap. The No. Wayne Taylor ...