2 = Make - Pontiac K = Model - Grand Prix 57 = Body Style - 2 door Hardtop T = Engine Code - V8 400 CID 2 = Production Year - 1972 **7 symbol should be a letter representing assembly plant** 536682 - sequential production number for assembly plant You will need to locate the Fisher Body Plate (located on cowl) which will tell you the paint code and other data.