Complex sentence: It was Voeckler's highest final general classification in the Tour, and the highest placing of any Frenchman in the Tour, at the time, since Christophe Moreau's fourth-place overall finish in 2000.
Split into simpler sentences: It was Voeckler's highest final general classification in the Tour so far. His fourth place in the final general classification was the highest of any Frenchman in the Tour since Christophe Moreau's fourth-place overall finish in 2000.