Road America Expanded to Six‑Hour, 54‑Car IMSA Endurance Race

Overview

• IMSA confirmed the Motul SportsCar Endurance Grand Prix at Road America is a six‑hour race with 54 entries across GTP, LMP2, GTD Pro and GTD, and the Michelin Pilot Challenge field lists 42 cars split 28 GS and 14 TCR.
• GTP leader Jack Aitken carries a 203‑point advantage into the weekend, and teams may run two‑ or three‑driver lineups in prototype classes with GTD requiring three drivers.
• Meyer Shank Racing set the early pace in GTP practice with Nick Yelloly topping the charts and MSR running 1‑2, signaling strong race pace for the Acura teams.
• Race control penalties from practice will remove the fastest qualifying laps for RAFA Racing’s No. 12 and Gou Racing’s No. 55, which will change their starting positions for the Pilot Challenge races.
• Drivers say they will treat the six‑hour event like a long sprint focused on track position and stint timing, a stance that will shape aggressive early tactics and pit strategy over the extended race.