"a new fast car"
Translation:سَيّارة سَريعة جَديدة
I can think of a few instances where it would be said. For example, my husband works with a guy who is in a race club and always buys cars that he uses for amateur racing (Yes, he is 35 going on 15, very immature "man" but anyway). So if he bought a new car it wouldn't be a fast new car since all of his cars are always fast. Instead it would be a new fast car. As in, "Oh, hey speedracer, I see you bought a new fast car."