In my younger days ... I had a hot rod Corvette and did drive at those speeds on backroads ... it is very easy not to know that one is being chased.
Those backroads aren't safe at all. At least that's my conclusion now that I have a problem with deer, (Thank you Jesus I'm still here after hitting THREE in the last few years. I drive like a Grandma now
If they can't keep up are they really chasing you?