Renee Zellweger and Ant Anstead took their relationship to the next level over the weekend with their first public date night.Anstead was accompanied by his Oscar-winning lady love to a gala event held by Radford Motors at the Lyon Air Museum in Santa Ana, California on Saturday.Anstead — who is part of the trio who have been working to revive the Radford Motors coachbuilders brand -- was excited to be a part of the grand unveiling of the new Lotus Type 62-2 race car.The only thing he seemed