I owned a 1983 Mazda RX-7 in my early 20s. I loved that car. It was the best car I ever had. My ex-husband specialized in fixing them, and I swear, even after the divorce he kept that thing running like a charm for me.
I always felt so special that I knew the car had a different engine and that I knew what that engine was. LOL, the things that matter when you are 22. Now I drive a Ford minivan that I hate with the passion of 1,000 burning suns, but hey....my sports car days will come again sometime.
Many homebuilt/experimental aircraft have a rotary engine.