In the past week I've seen two 718 Boxster Spyders, several E89s, E85s and Z3s, and an R8 Spyder.
But NO G29 Z4s in the last 500 miles of driving.
Also as a new convertible owner, I'm noticing that many convertibles only ever seem to be driven with the top up (except Miatas - they usually are driven top down). Even on really nice weather days.