Elon Musk is among the most controversial titans of Silicon Valley. To some he's a genius and a visionary; to others he's a mercurial huckster. Billions of dollars have been gained and lost on his tweets; his personal exploits are the stuff of tabloids. But for all his outrageous talk of mind-uploading and space travel, his most audacious vision is the one closest to the ground: the electric car. Inside the outrageous story of Elon Musk and Tesla's bid to build the world's greatest car.