Gonna update my comments since the last discussion. There are now two relatively reasonable ways to feed EV info back to Sense, if Sense isn’t picking up EV charging via native detections.
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use Direct Circuit Monitoring (DCM). Most 240V EV chargers are balanced (no neutral) so you can actually monitor 2 240V EVs (or another 120V or 240V-balanced load) using DCM. And if you have solar, like me, you can use a second Sense for the DCM monitoring and combine data post-Sense using a variety of methods.
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use SenseLink to feed EV charging data from Home Assistant back to Sense. Home Assistant has multiple EV charging integrations. I can pull charging current and voltage from my Tesla’s via the Tesla integration and produce power data. I haven’t done it yet, but that data can be fed back to Sense via SenseLink which emulates the behavior of Kasa plugs.