Sro 2025 Calendar. Quietly emerging over the weekend were provisional 2025 gt world challenge australia and gt4 australia calendars, announced at the 24 hours of spa. Your source for gt world challenge america live streaming, live timing, news, team and driver profiles, video highlights, photos, race and event information.

Mclaren automotive has confirmed the calendar for the inaugural 2025 mclaren trophy america series that will make its debut next spring under the sro. Provisional 2025 sro america schedule.