Saw an interesting article in the March Hot Rod...some guy took a Citroen, an ID 19 from 1966, and stuck a Chevy small block into it. He had to build a roll cage, because the body was kinda flimsy; and had to build a frame underneath, because he was putting over 400 hp into a chassis that originally had maybe 65 or so...but it made for a rather nice looking ride. And, it seemed to work pretty well. The hardest part was mating the one -spoke steering wheel to a modern column.
it's probably the strangest streetrod I've ever seen, but it works!
Dan