General awe and amazement -- the XMini rotary engine

Ok, this is very off topic but..



I googled up the most intriguing ICE I have ever seen. It's a rotary, but not a Wankel and claims to be the most thermodynamically efficient ICE to date (75% theoretical efficiency!).



I'll let them do the rest of the talking, but I'd be keen to here other's thoughts.



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