After the first few games, I have to say this version is definitely better than all the other versions I've come up with in the past year.
I've also decided to enter this into BoardGameGeek.com's 2-Player Print-and-Play 2013 Contest. It was all developed under the right timeframe, so why not? I also threw down 5 Geek Gold to the pot.
Sample Vehicle Card
Download the Rules (PDF - v1.0): Rules PDF
Download the Asset Pack (ZIP - 1.2mb): ZIP File