Way back...

In the 1970s the Dutch built Van Veen OCR 1000 became one of the most incredible motorcycles to own with its 4-speed twin-rotor wankel engine that produced 100hp.

Very interestingly, the Dutch name, Van Veen, is actually pronounced as 'fun fee-un' read in English. The price for this motorcycle was around $15,000 back in the day ($ 63,500 in today's money).

I added it to my list of exotic motorcycles that I'll never be able to afford.

Image source: motorcycleclassics.com