@Dakster
I assumed - possibly incorrectly - that the max charge rate was negotiated between the vehicle and the charger, so for example, if you plug a 4xe into a charger capable of twice the 4xe charge rate, it would just step down to the proper rate[?]
I'm 99.9% sure the supplied L1 charger is only 110v, just like most 110v devices (without some kind of external 240>110 converter).
What model Tesla do you have? I currently own a beautiful Mustang GT convertible, nicely modded, just fantastic, Performance Package, Magnetic Ride, A10, etc., but with the 4xe, we have our "convertible" vehicle that could replace the GT. I've owned a lot of performance cars, domestic/muscle, imports, some radically modified, but I think I'm done with that, and I'm starting to seriously think about going BEV to replace the GT, specifically a Model 3 Performance.
I'm more or less just waiting to see what happens with the reinstatement of the Fed Tax Credit for companies like Tesla who used all theirs already, assuming that new $7K allocation will pass, but talk of a more substantial $10K credit is pretty exciting!