Excellent body work. The different components all flow together smoothly and complement one another. Great paint work as well. Really captures the style of the time.
A friend of mine had one of these in the '60's. I think Pontiac offered these from around '49 thru '52. The engine in my friends was the straight eight until he got the Cadillac engine from a local retired Ambulance.
Another source for the Moon Wheel disks from long ago. The dashboard pull knobs on '58 to '61 Fords had a shiny aluminum center that when removed and flipped over fit perfectly into the stock wheels in the old AMT kits of that time period.
Great looking paint colors and finish. Learned a lot watching your door operations on this. The interior colors go well with the body. The engine detailing is really well done as is the chassis. Like the stance and wheels.
Beautiful Black paint work, you can even see the clouds reflecting on the finish. The white tail stripe and interior look great. Like the showroom style build.
There are several '51 ford resin bodies from more than one caster out there. The bonus, at least to me, is that they are of the tudoor sedan for the most part.
I have polished unpainted plastic bodies maybe three or four so far. As Steven Guthmiller mentioned you can lightly sand away the molding lines using a very fine sanding pad and then use a polishing media. My go to is the Mcquire's Plastic polish that they offer primarily for polishing plastic lenses and taillights. This stuff is even great if you have a plexiglass boat or motorcycle windshield that is scratched as well.
When the big push from Detroit to go with the dual headlights on the '57-year model cars the problem was that a few states didn't allow dual headlights on vehicles sold in their states. The reasons may be forgotten in time. What Ford Motor Company as well as Chrysler had to do on the models that they wanted to put dual headlights on was to build cars with either single or dual headlights on the same body styles until everyone agreed to allow dual headlights on the '58 models and beyond.