A hybrid-hummer.
Not even kidding. Driving to school today on the freeway when I saw a hybrid H2 hummer.. It had the hybrid logo and the "california car pool access ok, clean air vehicle" sticker thing. There was some add with some website link on it saying to go to hummerhybrid.com or something along the lines of that.
I dunno, I thought it was interesting. One usually doesn't think of hummers as being environmentally friendly.