After considerable thought and more than a few ideas, I will be going with a Dodge Caravan powered by a 600 hp Nissan V8. Here are the kits:
Inside Caravan box:
I like the Caravan for a number of reasons: it's probably one of the most common cars on the road, it's somewhat aerodynamic (vs some of my other ideas), and it has plenty of room in back for engines and turbos and whatever else...