My apologies as I'm sure it's been asked/addressed already, but how is this as a solo game? I tend to be drawn to co-ops because I can play them solo when the wife won't humor me and play anything other than Carcassonne or Lost Cities.
This game plays great solo. (Especially if you've pimped it out with Hot Wheels and you drive them around the board )
Seriously though, with the additional patrol car aspect, the solo play mechanism is first rate.