[tickthokk]

This seems a bit backwards. Would there be a reason to not just bring like 100 gallons with them and fill it up on the spot? Why risk giving your car to someone when the opposite seems just as feasible?

[xjohanson]

We'd love to do that but regulation is a big issue. Start with something do-able and then move forward!

[jastanton]

I would love to know which regulations and for which city's / states. Do you have that handy by chance?

[wahsd]

Because silicone valley, i.e., tech industry, that's why.

Really it's probably because transporting and handling fuel comes with regulatory burdens that make things a challenge, and silicone valley doesn't like real challenges, the culture likes creaming off the top before anyone else realizes what they're doing.