Somehow this all made me think that (aside from lots of TG-in-or-around-or-on-a-car sex) there should be - like with the celebrity guests - picking various characters from all fandoms and dropping them in the middle of said trio. See what happens. Who survives the snark ;) and who gets into a foursome.

Also, it made me think of the Four Car-Guys of the Apocalypse.