COSMO GRILLE: the '49 Lincoln Cosmopolitan belonging to Marty Hines, of Lynn (right, with John Favaloro), was in the opening scene of last spring's The Proposition, starring William Hurt, Kenneth Branagh, and Madeleine Stowe. Robert Loggia drove it in the film. Hines has had a longer relationship with this auto than with his wife, but says he has no particular affinity for his car: "it's just a project to keep me busy."