I've just seen from a few yards away what I thought was a Labrador but I'm not sure. If it was, it had a more sleek body than I'd expect. Also, its coat colour was not quite yellow - there was a gingery tinge on its back and sides but lighter elsewhere. Nose appeared to be more pink than brown - I believe that's usual for Dudley Labradors. It did have the classic swinging and swishing Labrador tail though.
Whatever it was, it was a very handsome pooch. Labrador with unusual colouring and surprisingly slim or perhaps a crossbreed ?