IMSA President John Doonan has teased further growth for IMSA’s GTP class in the coming years during today’s pre-Rolex 24 press conference. Doonan spoke directly about the potential for additional ...

GTP and GT classes will see an additional variable added into the equation meant to even out the performance playing field.

Grand Touring Prototype (GTP) is the pinnacle of endurance racing in IMSA. Hear as drivers explain the finer details of their class as Leigh Diffey highlights the prominent names and teams to know ...

Penske also returned to IMSA in 2017 with Acura and later switched to lead Porsche's GTP program, which won the 24 Hours of Daytona and the GTP championship last year. Like Brown and McLaren ...

IMSA president John Doonan says that GTP manufacturers tell him they want to hire American drivers, but where will those drivers come from? Being elbowed out by drivers who get their training in ...

One of the more unique-looking Jaguar racers, the IMSA-based XJR-10 ... although they were unable to beat the overwhelming Nissan GTP ZX-Turbo cars driven by Geoff Brabham for a championship ...

IMSA Classic Saturday morning at the 63rd Rolex 24 At Daytona truly offered race fans and competitors alike a period-correct ...

with the IMSA GTP Hybrid Electrified Race Car, at Action Express Racing to learn about physics and engineering. “What we’re doing here is a laboratory. It’s a laboratory for the automakers.