For drivers, collectors and automobile enthusiasts, Aug. 13-16, 2025 has already been highlighted on their calendars for the historic racing event of the year—the Rolex Monterey Motorsports Reunion that will celebrate the 75th Anniversary of Formula One®.

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The high-pitched revs of F1 will be a stark contrast to the deep-throated rumble of cars from the original IROC (International Race of Champions) series, which held races from 1973 to 2006. For the first time since 2002, IROC will return to the West Coast with an incredible display of authentic IROC race cars, with many being piloted by past IROC competitors from NASCAR, Formula One, IMSA, INDYCAR and Trans-Am.