Complex sentence: He competed in many various events throughout a long racing career, including the 24 Hours of Le Mans for Elva, non-championship Formula One races in 1968, and the British Formula Three Championship.
Split into simpler sentences: He competed in many various events throughout a long racing career. This included the 24 Hours of Le Mans for Elva, non-championship Formula One races in 1968, and the British Formula Three Championship.