North America’s premier sportscar series returns to America’s National Park of Speed, bringing several familiar names for race fans and a handful of down-to-the-wire battles. IMSA races feature elite sportscars from nearly 20 different manufacturers, including Mercedes, Ferrari, Chevrolet, and Aston Martin. The skill of the drivers, paired with advanced automotive technology, creates a high-stakes, adrenaline-fueled race weekend you do not want to miss. The midsummer WeatherTech Championship race at Road America will evolve into a six-hour endurance event in 2026, with Motul continuing as the title sponsor. The new format aligns Road America with endurance classics such as the Rolex 24 at Daytona, Mobil 1 Twelve Hours of Sebring, Sahlen’s Six Hours of The Glen, and Motul Petit Le Mans.