The only water-cooled VW I've owned was the 1979 Dasher diesel.
Arcimoto FUV were manufactured just across the river in Eugene, OR. They sold stock in the company, which made them vulnerable to bad actors. The 'short squeeze' tanked their stock values, so even though they had a viable product they went under. Maybe a thousand or two in existence.
Xist's thread on them:
ecomodder.com/forum/showthread.php/arcimoto-real-thing-12k-tandem-ev-trike-70-a-32962.html