[Christ]

Well, you've got a truck, and you've got a Minivan, so how about a reverse trike? You can pie-cut the floor and roof, taper the sides from the fenders back into a point, fab a swing arm from the two trailing arm assemblies, and put a single wheel between them, tapering the body work back to a logical point beyond the wheel. Single exhaust with a rocket can pointed up just under the lowest point of the body work, some 16" rims with Low profile tires on the front and a 205/50R13 on the back, and you should be pretty good to go. Plus, you can retain one more seat in tandem between the two front seats, but in the back.

Three racing seats, you get to lose a butt load of weight, it's still stick shift, still 3 cylinder, and can actually do more now with the same power, and it's just plain sweet looking. You could also make a semi cage inside and remove the top/make a targa for it, for the nicer days driving through town.