Upgrade? Tonight a Taxi from San Francisco ran out of fuel at a bad spot. He said it was Propane. Nearest station was not close. Not for me. I drove a Crowne Vic in Houston w/Propane. Good performance, frequent fueling.

The (overpriced) Tesla owners park in the sun. Wind is less than 2% of our power. I'll take conventional fossil fuel anytime. I step on the gas and it goes. I need fuel and it is easily found.