Right now, Cars.com lists 118 Taycan's with many showing actual stock images and as of December 2019, its been confirmed (by Porsche) that 130 Taycan's have been delivered to the U.S. For anyone interested in tracking the amount of Taycan's moved, these numbers begin to provide some interesting insight.
What I'd really want to know is how many are in the hands of actual owners. From the numbers here it seems to be 12.
When I checked yesterday it was at 124!