Just an idea I was chewing on today. The mold seems like a good candidate for repainting. Doesn't have many points where paint would rub and all that.
Click to view attachment
I'd probably leave the smaller lights alone and just scratch-build a bigger roof light (I ended up enlarging the cut&pasted light anyway). I'm not sure if I like the windows blue either. (EDIT: changed the windows to match the headlights. I kinda like it better this way.)
Here's what I based it on:
Click to view attachment
I'm not sure what colors I'd make the robot, except that I'd want the silver (arms and legs) painted in a dull copper.
Dunno about a name either. I was thinking "Gumshoe", but that makes me think of a detective more than an officer.
Hmmm...actually, I could add some purple and make him a Decepticon..and make my own 1940s spin on Barricade. Pair him against an unpainted Hubcap as an Autobot equivalent of a moonshine runner..