As I was drving east bound on a road in central NJ, I observed 5 objects flying in a broken formation. Orignally I thought it was commerical airliners. As They fly silently over head I saw long silver like objects, almost missle like, infront of the what seemed to be swirling smoke trails. I observed the obects break formation with two going south while the others continued northwest. The objects then came back into formation and made a very wide uniform turn south bound. And out of sight.