Hi, that's some really cool work you are doing.
But as an owner of a real 1956 Buick Roadmaster i'd like you to know that Super and Roadmaster are quite different regarding the exterior trim. Most significant difference is the sweepspear side trim that goes only halfway down to the rocker panel on Roadmasters. It has smaller chrome rings around the headlights but features little bombsights on top. The trunks lid has 2 additional chrome stripes.
Can't wait to see it as a full 3d-model though.