N.C. State University engineering professor Seth Hollar holds the door while Rep. John Torbett of Gaston County emerges from the EcoPRT, an autonomous vehicle developed by students and faculty at NCSU. Torbett was one of several legislators who got a first-hand look at the latest in self-driving technology at the State Highway Patrol test track in Raleigh on Monday, Dec. 4, 2017. Richard Stradling rstradling@newsobserver.com