People surround themselves with 2 tons of steel and think they own the road. Last summer I went to pass someone who I had been behind for 2-3 miles, going 45-50. I finally come to a passing zone, pull out to pass and he speeds up, I speed up more, he speeds up more and I drop to 4th and hammer it. I finally wound up passing him at @ 95. At least he didn't swerve towards me. Later that night, I talked to a buddy who is a former nys trooper. He said he had heard of other bikers going through the same experiance. His advice for that situation was to swallow my pride and back off because a pissed off car driver allways has the edge on the biker. Tough to do at the time, though.