[1] His greatest results have been winning three stages of the Tour de France, as well the overall classification of the Route du Sud in 2005.

He then finished 16th in the 2004 Tour de France, and sixth in the 2006 Giro d'Italia, 25 minutes behind winner Ivan Basso.

On 27 July 2007, he won his first Tour de France stage, beating Laurent Lefèvre, Axel Merckx and Michael Boogerd in a sprint after a collision with a dog earlier in the day.

The breakaway was down to only four units in the descent of the col, and got caught in the final kilometer by Andy Schleck and Alberto Contador, who had escaped from the main group on the Madeleine.

Casar won the uphill sprint to take the prestigious victory in one of the toughest stages of that year's Tour.