BTW, I think the contact surfaces of the wheels would be shiny metal due to constant abrasion--at least railroad wheels are.
Astromech,
Don't look now, but 2 other guys just posted the exact same picture as you :eek,
... on This Post!!!
Very impressive! Love the final track and base too!! :love
(For me to purchase kits, I'd like it to be populated with all the figures. Not sure about hot toys style, but sculpted. I know that's asking for too much, but if I bought a kit of this and the pursuing car, I would want figures in it. But not studio model-like. Realistic.)