I happened across this rotary powered car, Sea Lion, on "15 Most Unusual Cars in the World" on (at about 8:25/22:40). The Sea Lion is an amphibious Super Car by Marc Witt, built from 2006-2012. Witt said in an article that he planned to replace the 74 RX3 engine with a turbocharged Renesis engine.

 

The narrator of this video manages to achieve something I didn't think was possible... namely, being more annoying and pretentious than Doug DeMuro.