Winter Challenge 7H / R4

Round 4 of the Winter Challenge 2026-2027 rental karting endurance championship is a 7-hour endurance race on December 12 2026 at Ouest Karting in Aunay-les-Bois, Normandy, France. The format is 15 minutes of qualifying followed by the 7-hour race, with championship points counting 1.5 times. Teams race with Sodi SR5 390cc karts, equalised weight 85kg and quick driver and kart changes. The championship runs Legend and Amateur classes, with a maximum of 30 teams per race.