Patrick Dempsey got behind the wheel of Mazda's Formula 1 car yesterday for a race at Le Mans. It's been a busy week for Patrick, who helped present his pal and Sweet Home Alabama costar Reese Witherspoon with the MTV Movie Awards' generation award on Sunday. While Patrick is abroad, there are rumors back home that he won't return to Grey's Anatomy next season. Patrick's rep cleared up the confusion, which resulted from a quote he gave to Vogue Italia, by saying "[Patrick] was referring to the fact that his contract is up at the end of next season, and we have no idea what the future holds." His small-screen career may be in limbo, but soon enough we'll see more of Patrick in Michael Bay's Transformers: Dark of the Moon when it opens on June 29.