Here is how I'm taking that statement: KM saw the road rager guy during their driving lesson, TM dropped her off at home,
BM gets in the car and searches for the road rager. KM is still at home waiting for mom and brother to return, maybe at that time she was looking out a window??? Maybe when mom and BM pulled into the driveway she ran outside and that was when she spotted the Audi? IMO there isn't much difference between the 2 cars that were are in question (not the Buick we all know that car) but the silver car. Now the tinted window ordeal doesn't mean neither of the cars had tinted windows even though KM said the road rage car didn't have them tinted. IMO, you can have dark tinted windows or light tinted windows, this I know because my husbands car has darker tint than mine. But the car colors are basically the same as well as the description... MOO!