Not even close. The S800 is 210mm--identical to the Rover (Classic) Mini. I've got an extra S800 body that I'll do a RWD conversion M03 under (unless someone offers me ridiculous money for it...hint hint) if I like how the one I'm doing now works under my Datsun 510 body. Also doing a RWD M03 for one of my Abarth bodies and have an NSU and Subaru 360 bodies on order.