I love it. A well imagined fake car can look like a real car, and this hits the nail on the head.
Gonna remember the trick with the Krylon rust red, it's a nice color. What did you stain the floors with?
I used Minwax dark walnut stain. I used a small pointy awl, scribed a line across the board where there was going to be joint and also lightly pushed the point of the awl straight down in the wood at areas where I felt a bolt or nail should be. I stained the wood, then wiped the stain off, the concentrate of stain stayed in the indented areas that had a line across the boards and dimples for the bolts or nails. Gave me the effect of a board joint and bolts or nail heads.