i would think so, look how the value of Eclipses and Supras jumped after the 1st one, and the popularity of Evo's after the second, im thinkin 350z, ae86 and Rx7 will jump in popularity and prices.
But then again, cars that dont have a main role in the movie should jump just a lil, just having a hooked up import will probably gain a lil value, well, more then it is now, just cause of teh act that you know kids will go out and try and get that car, instead of working it up, they rather have afinished product