Tesla Roadster Battery Upgrade Details: Coming This Week, Musk Says

Say what you will about Tesla Motors chief executive Elon Musk, he’s one of the very few global automaker CEOs who personally responds to owner questions via Twitter. And he’s at it again, promising late Friday afternoon that details will be coming this week on the promised battery upgrade for the Tesla Roadster sold in the U.S. from 2008 through… …read more