Both Kubica and Deletraz were part of the team WRT crew that lost out on class victory at La Sarthe with an electrical issue that caused the car, then driven by Ye Yifei, to crawl to a halt on track when the team had a one-lap advantage over the field.
Failure to complete the final lap of the race saw the trio unclassified at the finish, although WRT did at least secure the class win with its other entry crewed by Ferdinand Habsburg, Robin Frijns and Charles Milesi.
