V3 Superchargers have liquid cooled cables, that's why they are thinner than V2 cables. V4 has even crazier liquid cooling, where the conductors are directly immersed in the coolant.
In the EU/UK they have the CCS2 plugs on them, and are compatible with any CCS2 capable car.
(source: me, I used one last week for a non tesla car)
Plus, if the concern is the port then I don't necessarily mind that fast charging companies will have to deploy new hardware, as long as the cars don't need to get retrofitted all the time or use adapters.
It's tough to bring currently deployed chargers to CCS's defence, given most deployed chargers are Tesla's.
>> It's better engineered and designed. It's that simple
CCS currently supports 800V. NACS is going to support 800V. The number of extant chargers with 800V capability is, to a reasonable approximation, the same for CCS and NACS. So NACS being able to support 800V rhetorically balances CCS being able to roll out 800V chargers (or any, period), at least in my mind.
Put another way, one solution is deployed and capable of upgrading. The other is also capable of upgrading, maybe comes upgraded already, but hasn't been deployed. The first strikes me as better engineered. (The latter may have superior design, but I have trouble buying that argument given NACS can be upgraded.)
Superchargers wete also lagging on liquid-cooled cables, which will be included in v4.