The idea of self-driving cars is plastered across the media. But a lot of the talk is about a futuristic, Jetson-style approach at a fairly superficial level. Some pieces go deeper, but there’s a dearth of investigation on the subject. And it’s becoming reality faster than anyone thinks. In Austin at SXSW this year, I was joined by Stanford University’s Reilly Brennan, who runs their automotive program, Revs, as well as Seleta Reynolds of the…