If things go right I will get a loaner MS with autopilot while mine is in to fix brake booster noise for the third time. I really want to test autopilot form Orange County, CA to Malibu. I figure it will handle everything up until it gets to the 10FWY westbound to PCH (Pacific Coast HWY) tunnel. You go from a normal freeway to a dark two lane curving tunnel and out into normally bright sunshine two lane HWY, normally at high speed, but sometimes traffic stops in the tunnel. Anyone drive this? What happens? And what happens in tunnels in general? Anyone do the Eisenhower tunnels on i70 in Colorado? Etc.