To clarify from my angle: When I read "BMC-based" I immediately thought of Innocenti. I knew they had the same motors (more or less) I had in my Bugeye Sprite eons ago. It wasn't misleading to me, but rather clarifying.
I don't wanna step on anyone's toes, but I figured I'd explain the way it came across to me.
RtR
ps...here's a shot of my overly-well funded
Sprite at full chat, just before a rod went thru the side of the block. I seem to do stuff like that to race cars. Hmmm.....