There was one in SA with twin 1275 automatics in it. Pics were in a Mini Magic issue.
Back in the late 60's there was one in Wollongong, NSW with 2 998 Coopers in it.
I helped a guy build one in 1968/9 but it never got finished to hit the street. Long story.
Basically you fit a complete FWD assembly into the back, (with tie rods attached to the subframe), then you need to sort out the gearshifts, clutches and throttles.
See Minis in Motorsport forum for a pic of Bill Westerman's race Twini.
<edit> here it is again..
_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
