IROC Returns: Seven Generations of Legends to Reunite at Laguna Seca

By Charles Bradley, Petrolicious.com, July 1, 2025 //

There are few acronyms in American motorsports that carry the same instant recognition and gravitas as IROC. The International Race of Champions was once the battleground for the world’s best drivers – Formula 1 world champions, Indy 500 winners, NASCAR icons, and sportscar legends – all racing against each other in identical cars. For purists, it was as close to a true test of driver talent as the sport could offer. And now, nearly two decades since the final IROC checkered flag waved, the series is roaring back – at least for one weekend.

From August 13-16, 2025, the Rolex Monterey Motorsports Reunion at WeatherTech Raceway Laguna Seca will welcome an unprecedented gathering of 24 historic IROC cars. In a first for the event, all seven generations of IROC machinery will be displayed and run together, capturing over 30 years of the series’ unique all-star competition.

Founded in 1973 by racing pioneer Roger Penske, IROC was designed to pit the world’s top drivers to determine the “best of the best.” Spearheaded by IROC co-owner and NASCAR Hall of Famer Ray Evernham, this ‘resurrection’ grid will include everything from the original 1974 Porsche 911 Carrera RSR to the final Pontiac Firebird that saw Tony Stewart claim the series’ last title in 2006 (pictured above).

A Field Stacked with Icons – Cars and Drivers AlikeThis is no ordinary historic display. These cars aren’t just preserved; they will be driven in period-correct liveries by racing royalty. Al Unser Jr., a two-time IROC champion, will serve as Grand Marshal for the IROC class, while fan favorites like Bill Elliott, Scott Pruett, Danny Sullivan, and Zak Brown are expected to take part.

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