The DeLorean was known for a lot of things. Speed was not one of them. Underpowered even by early 1980s standards, it was a bizarre choice for a time machine that needed to hit 88 MPH to cross the temporal barrier. But could Doc Brown’s car even go that fast in the Twin, er, Lone Pine Mall parking lot like it does in the first Back to the Future? Opponaut Bullitt Ride did the math.