>>Did you have a rear view mirror? Or just the camera?
>Camera only...the mirrors have always been a distraction to me...but I think I may try that again.
I ride in that situation (along the highway) very frequently and I have a helmet mirror, but I rarely check to watch a car approach me. It would be a different experience if I checked each when I heard it coming, and I just don't do it.
Sometimes I'll look back (with the mirror) if I hear a big truck coming, and sometimes I listen to hear if the vehicle changes lanes (the tires make noise as they go over the raised lane markers), but I have to admit that I'm usually oblivious to the cars. I ride on road like that about two hours per week.
Thanks for posting it.