um, lets see, for 4k, i can see you picking up an mk3 supra (86.5-92) a decent 5 speed turbo can be picked up in that price range, its not a v6 but an inline 6 mated with a turbo and has a hatch. i would say an rx7 of the same years but thats a rotary and you mentioned a v6 so i dont know how you feel about rotary's. look for maybe even a corrado or scirroco (sp?) by VW, both hatches and i believe were available with the vr6 engine.