1300 km is 800 miles or 11.5 hours at 70mph + one fill up. I don't see most people being able to do that without zoning out.
The trip back is usually done in one day, ~10am to ~midnight. This usually includes 2-3 stops for gas and food. I wouldn't mind these stops being half an hour instead of their usual ~15 minutes, but it would mean that I would have to leave an hour earlier, or get home an hour later. since I'd have 50-100 miles less range per "fill-up" with the top-of-the-line Model S, I'd probably have to make an extra stop as well.
Ultimately, I look forward to none of this discussion mattering in 10 years, at which time I fully expect 400+ mile range in self-driving EV cars that charge in 10 minutes.
***fingers-crossed***