Porsche factory driver Nick Tandy is the unofficial king of endurance racing since January 26 of this year: The Briton clinched victory at the Rolex 24 At Daytona at the wheel of a Porsche 963, completing the coveted “Grand Slam” of endurance racing.Porsche factory driver Nick Tandy is the unofficial king of endurance racing since January 26 of this year: The Briton clinched victory at the Rolex 24 At Daytona at the wheel of a Porsche 963, completing the coveted “Grand Slam” of endurance racing.