Herm said:Perhaps it may be easier to slow down to 55mph, you wont get rammed from the back, the speed differential is not that great. As an example: You are driving along at 20mph, are you really going to run into some guy stopped in the middle of the street?
At 55mph around here you'd see a 30 mph differential on the freeways. And being passed by cars going 30mph faster than you isn't a very safe way to drive. In fact so far I've seen two pretty nasty accidents caused by someone trying to pass using the right lane, only to find he could not get back into the middle lane in time - and thus rammed into the car ahead of him.
(Which means perhaps "keep off the freeways" if you need the extra range.)