To enjoy streaming services in your Tesla, please follow these steps:
Tap the top-left corner enlarge browser button to expand the browser to full screen first.
When prompted with "Are you sure you want to leave YouTube?", tap GO TO SITE to access your desired streaming service.
NZ Teslas use an Aussie SIM, giving an Australian IP address. This may block some NZ streaming services. Use your phone as a Wi-Fi hotspot for NZ access.