22 actually, and like I said these kind of movies are either so bad they are funny, or are held up as good cinema by mindless drones.
Whilst these movies are aimed at American "Tuners" who seem to be all into vinyl stickers, civics with neons and stereos which consume as much power as your average house, and are forever hitting shots of "naaaaaaaaaaaaaaaaaawzzz" on the street (in these 1/4 mile races which seem to last for 16 kilometres), its not just having a few liberties taken on reality, they may as well be racing on the moon.
Also, when its at the point where you can't recite a single line of dialogue from any of the movies without keeping a straight face, and that there are more image macros made from the series than you'd care to look at, you have to admit that it's not just bad, its ugly.
Watch Inital D, or even the first Mad Max, then go back and watch F&F (any one) again, and if you've got two brain cells to rub together you'll see the difference between a car movie which is actually good to watch, with an interesting plot and decently developed characters, and 'blinged out', bland hollywood tripe, spoonfed to the masses by the same wankers who greenlight Adam Sandler movies.