Welcome back Walt! This track is really cool, and the cars zipping around more so. This gets the award for panning.
I was thinking I heard some conga drums or something, but maybe just for a second? Maybe it was a synthy hi tom or something. Anyway, for more kitchen sink fun, you might add a funky conga beat somewhere, just an idearrr. You probably thought of that one already!
Mix is clear as crystal as usual, nice job!
-Tom