"How fast can you take it?" I ask Craig Spuhler, Rossion's technical engineer and my passenger at this particular moment in time. "About 75 mph with an 85 mph exit speed." I was behind the wheel of a Rossion Q1 winding my way up a 270-degree decreasing radius on-ramp that shoots straight onto Florida's I-95. As Spuhler has put more miles on Rossions than anyone else alive, and I'd been in the car all of 15 minutes, I decided that 65 mph was a nice,...