By Veronika Bondarenko What’s cool to Tesla’s CEO is a matter of growing concern to highway safety regulators. Tesla CEO Elon Musk is big on making bold predictions. Seven years ago he said Tesla could one day have the same market capitalization as Apple, which was $750 billion at the time. Late last year Tesla topped $1 trillion in valuation, although its’ pulled back sharply this year. Musk has also made reusable rockets commonplace, and is even constructing the largest ones ever in his quest to let humans travel to Mars. But not all of Musk’s predictions come true when he says they will. On…