I regret not getting clearer pictures to zoom in and see the words on the instruments but I felt the need to be discreet as I was just walking by, these ocean-front home garages are rarely/NEVER left open unattended. What is this mystery chamber?
One more different angle picture in the comments, you can see the seating bench in the chamber.


That looks like a BMW R Nine T. That’s a cool motorcycle!
This is precisely the kind of smartassery I am here for.
And whatever it is, their motor vehicle registration expired in 2024. I did the courtesy of blurring out the license plate number though.