I'm not really qualified to say, but it looks to me like there are some real differences in the two motors.
I also don't think the developers would have gotten a $2.5 million dollar grant from the Advanced Research Projects Agency to copy and paste an existing ICE technology.
I remember reading an article about the Wankle when Mazda first put it in a car. They said the mileage was slightly worse and it wasn’t quite a clean but experts say it is the ideal power plant for a car.
I said - ok then.
Mazda still makes their engine-it’s in their RX-8.
I had an ‘87 RX-7 and it was a lot of fun to drive but they screwed up the marketing and made them so expensive no one could afford them. I don’t like the styling of the RX-8 myself.