Squeaks, rattles, rust, and doors that don't appear to be lined up. Looks like the real thing to me!!:-laf
Joking aside... This is one of the coolest RC models I've ever seen!
That's authentic stuff right there.
The only thing that could possibly make this more "authentic" would be a summertime scene where the dude hanging his arm out the window at 0:43 had a suntan on only his left arm!!