Whether you need a NACS adapter depends on your car's native connector and how much you plan to rely on Tesla Supercharger stations specifically.
If your car has a native CCS port
A CCS-to-NACS adapter lets you plug into Tesla Superchargers that support non-Tesla vehicles, expanding your practical charging options significantly, especially in regions where Superchargers are the densest fast-charging network available.
If your car already has a native NACS port
Newer EVs increasingly ship with NACS built in, in which case you may instead need the reverse — a NACS-to-CCS adapter — to access older CCS-only stations from other networks.
Checking what your specific car supports
Adapter compatibility and availability have evolved quickly as the industry shifted to NACS — checking your manufacturer's current guidance is more reliable than assuming last year's information still applies.
Are NACS adapters included with new EVs?
It varies by manufacturer and model year — some automakers have included an adapter standard, others sell it separately, so it's worth confirming directly with the dealer or manufacturer at purchase.