Hey, thanks for the detailed response. My original post was calling out your original point: "Solar cells can't charge EVs fast enough on Earth". It seems you now agree with me:

"It would take 75 solar panels to charge a single Tesla in a day."

So indeed, you can charge EVs with solar panels, you just need more. 75x250W panels can charge a 75kWh model S in one day, on average (equals 135000km/year). Such panels are available at consumer prices of $1/watt including charge controller, so ~$20,000 would buy me the panels I need to fully charge my car daily (4 times as much as I need).

Max theoretical efficiency on Mars is roughly 1/15th of Earth norm, not taking into account Martian weather, and assuming you are always somehow directly facing the sun the entire Martian day.

These variables (martian weather, facing the sun) are similar to the issues faced on earth with solar panels. And the solutions are the same on mars as on earth: increase panels (aka overprovide) and include power storage, or include an alternate power generation system. Ideally both. Where the weather can have longer impacts (eg dust storms), an alternative power gen system (i.e. nuclear) is likely better from a launch mass point of view, but that isn't clear without doing the detailed math on it. That's before even getting into details on how different a vehicle on another planetary body would be (eg the lunar rovers had an 8.5kWh batteries and lasted multiple days - lack of atmosphere and lower speeds and mass make a car much more efficient)

Take weather and the day-night cycle into account, and it takes about a Martian year to charge one Tesla.

(or half a year if you double the panels, or a day if you have 365x the number of panels, or....)

A single search on Boring Co shows at least a dozen articles about their misrepresentative claims

If by "misrepresentative claims" you mean missed deadlines and abandoned ideas - I'd agree with that. Tunnel opening delayed, further extension of test tunnel dropped in favour of full network at undefined future date. But that's par for the course with everything SpaceX has done (eg Falcon Heavy delayed 6 years, Dragon Crew delayed years, BFR changing plans every time it's talked about), and shouldn't be even a bit of a surprise for anyone who follows Musk. As a member of the public who couldn't invest in SpaceX or the Boring Co even if I want to, those things really don't affect me in any way - the goals remain the same, and the progress remains ...progressive.

I assume the Google personalization filter is effecting both of our search results.

Agreed.