As the picture above shows Porsche CV's have to be adapted to work. I've seen them on vehicles and "vehicles" (race trucks, tube vehicles, etc) with all kinds of makes, components, peices, etc.
I also remember reading a while back where a guy used CV-joints and axles from a 3/4 or 1 ton GM IFS truck's front diff. I dunno where they rank compared to the Porsche stuff but I know it's a decent diff.