thanks Mike, thats the help I needed. the 64 is on the large Electra 225 platform while the 65 moved to the smaller LeSabre. I have been told that this car is one of nine as the 64 is one of two. (not rare like the one of one GTO RAIV verts) This vehicle has had but a few collector owners with the original owner reportedly being an executive at Buick or General Motors. Also claimed but not yet documented is the mileage reading of 10,000.