movie help cant rember tital?

ok along time ago i wathced this one movie were a girl and her boyfriend are driving, theres this guy who i think rams them off the rode and the girl loses concussness and wakes up and her boyfreinds gone she hitches a ride on a tour bus but it starts getting creepy when she keeps hearing photo clicks in the back so she runs and looks and finds this mutated kid taking pictures. the people drop her off at a rest stop and the guy that has her boyfriend tries to get her and she runs into the bathroom and locks herself in there she like tears up the bathroom and hears a voice and opens this one door thats also in the bathroom and sees a girl crying and bleeding from the mouth she like looks away for a minute and looks back and shes gone. then she sticks her finger through the lock that leads in to the bathroom and the guy like bites off some of her finger?

then a cop comes and the guy runs over the cops legs and she drags him to the bathroom and he begs her to shoot him she does and he dies but she looks away and looks back and hes not there

then the guy like lights the bathrrom on fire and she jumps from the roof

and then she makes his car explode but she looks back and hes right behind her

oh and he like tortures girls on this old yellow bus because it has a flash back of him doing it...

then like i think its 3 years later and they rebuild the bathroom and it happens all over again.

I CANT REMBER THE MOVIES NAME....

CAN YOU HELP ME?