Yes, Dan Akroyd certainly had Amphicars a few years ago, two other names, Uri
Geller (I met him and did some work on his car about 15 years ago - he has since
sold it) and maybe the biggest name of all, Madonna. She had an early light blue
Amphicar, it's in the video of a track from about 1984 called "Start me up".
Elton John was very keen to buy an Amphicar about 10 years ago - it didn't
happen and he has since sold many of the hundreds of cars he once owned.
There is also a story - unconfirmed but from a good source - that John Lennon
kept four white Amphicars in the late 1960s at his manor house near London,
which just happened to have a large lake with an island. Someone once told me
they had seen a photo of all four Amphicars, with a Beetle in each, racing
across the lake !
David Chapman in the UK