But comparing against the high end today, it looks a bit more do-able.
A Tesla Model S P85 weighs 2239Kg, has a range of 310 miles and using the Supercharger network, can be recharged for another 180 miles in 30 mins, or fully charged in 75 minutes.
An electric Cali wouldn't be *that* much heavier ( swap a few hundred Kgs of engine, gearbox, exhaust and fuel for batteries ), but would need twice the battery capacity to give it a similar 600+mile range to what we have today. So, we'd have a 170kWh battery pack, and using the 135kW Superchargers, could add a range of ~375 miles in a one hour charge. Maybe 2.5 hours to get back to 100%.
Supercharging stations are still a bit sparse, so although I'd be concerned *today* about hitting all the right stops on the way down through Europe, that's changing rapidly. Most of us are going to stop for an hours break every 5 hours anyway.
The P85 takes around 9 hours to fully recharge from a standard home 13A/240V connection. Double that for our California, but you can still get a pretty big boost if you're plugged in on a campsite overnight ( with a 16A supply - not so much at 3 amps ).
I'll be holding onto my T5 for a few more years though.