Huntin' for the 6th consecutive French title and in challenge for an ever fought European Championship, Lionel Régal starts attacking the 2010 St.Ursanne/Les Rangiers, one of the rainiest edition in the Switzerland race's history. Bad weather regardless, the traditional "grippon" speed detection declare Régal already the fastest of all. But approaching to T2 point, about 250 km/h estimate speed the Lionel's Reynard suddenly loses his grip on a water trickle and flies inside (not protected by guardrails) of fast turn, arresting tragically his race against a tree.