For most people who drive less than 200 miles in the day, so long as you have six or seven hours every evening to charge, all you need is a NEMA 14-50 connected to a 50 amp breaker, The adapter and the cord that comes with the car. It is true that the tesla wall connector can be powered with more amperage, but it’s only going to give you a few more miles per hour even connected at 60 A. The wall connector does look better, and makes for a fancier garage, but it’s really not necessary. I would also add that in the 4 1/2 years I’ve owned my MS, I took the cord with me on a road trip one time and it was a complete waste of space because unless the location has a 220v Plug, all you’re going to get is a trickle charge.