How is the drive to Vegas?
Do you think it could be done in a 60kWh car?
The longest segment is Barstow to LV at 170 miles. With a range charge in Barstow and conservative driving home, I think it will be fine. The next longest segment between superchargers is about 130 miles, Tejon Ranch to Barstow, and it has a lower speed limit so less chance getting run down by people doing 90 or more.