How about adding a V-8 Option to rangers? There is more than enough room to fit a 4.6 under the hood of the newer ones. Hell, my '91 can hold a 5.0 with room to spare. A turbo model would be nice too :-) Also, add a better air induction system, rangers are notorious for needing new air intakes because the factory ones just SUCK.
Also, in another area, provide Saleen with Cobra engines ;-) Vroom!