Thanks guys, I'm glad you like the shell
I've got tons more designs, but many aren't even do-able with a plate+post chassis design
@ruf: I've never seen these before, but I really like what I'm seeing
I can imagine the load on that system is much better distributed around the head of the dogbone and on the outdrive - and it should be pretty smooth (though on a tourer I can't see much benefit of that on the outdrive end, as the suspension barely moves).
For now I'll keep it at existing driveshafts. When the FF shows potential to make rear wheel drive eat it's heart out (without being banned from the 2WD class of course), I'll definetely look into 'alternative' driveshafts. A good place to start would be to test the different settings on a touring car chassis, Double Cardan and even Rzeppa Joints are already available for some 4WD tourers
It shouldn't prove that hard to convert these systems onto a FWD tourer as long as the driveshaft fits in the outdrive.