I think it would be really cool if there was a drunk-proof car. ... something that was designed specifically to cater to the inebriated. The main selling feature of this car (or van) would be that if you got pulled over by smokey, no problem.
Customer:"it's alll-right ossifer. I'm in a highmobile".
Police: Ah, so you are. Pro-ceed.
This could be something as simple as a cardbox box with wheels drawn with Crayon. ... with a good stereo of course. (:
Reward: a statue errected in my honor.