I always thought they made a huge mistake not going with peripheral ports. They could have made 240 HP at 6000 eccentric shaft RPM with a naturally aspirated two rotor engine. That would be perfect to replace a IO360, you could derate the power as needed. Turbocharge the same and you have a IO540 output in a lighter package. No need for an expensive three rotor. They didn't seem to understand that Mazda's porting was all about meeting emission standards. They did a lot of good engineering, but missed the boat on the fundamentals of what makes a Wankle so strong: Volumetric Efficiency over 100% for gobs of power in a small, lightweight package. A three rotor engine should make 360 HP NA and 540 HP turbocharged.
That said, their FADEC, bell housing, accessory mounting, and planetary reduction unit were all top notch.
Hans