what's wrong with surprising everyone (or at least those who pay attention) with playing for the Corvette in Pocket Change, One Away, or Pathfinder?
This wouldn't be a bad idea. Pathfinder is, at least to me, far harder than it needs to be, pretty often, considering that a maximum of three mistakes are allowed, and the redemption from said mistakes must be earned. I've seen games of Pathfinder that I honestly thought were ridiculously hard, especially due to the fact that three of the first four numbers to choose from were legitimate choices for a reasonable second number (i.e. the numbers were, say, 5, 7, 8, and 3). For just about any lower-end vehicle, any of those could be viable. Waste one of your second chances on one or two of those, and you're practically a goner. With a premium vehicle (say, starting with a 4), just about any of the four numbers could be legitimate second numbers, too.
I could see Pathfinder being played for premium vehicles.