I can actually top this one!
Down the street from my house a farmer has a 60 Chevy truck that someone converted into a nut tree shaker.
He drives it on the road. It is set up to drive in reverse at all times and the seat and steering wheel have been relocated so his back face the front of the truck. The roof section has been removed.

And this was done before Monser Garage.

I will get a picture and post it someday.