You can't i think, but i have a jb ps3 i can make a car with custom colour, then i can place for the house there is it every time and then i can give you the savegame with the custom colour. ADD me in skype if you interested: mp5-mad90

U can, but u're go'n in the wrong direction man. 3 sox mod manager already has speed, brake, and 2 tpyes of suspention tweaks. The only thing is, it dosen't save. But, this, is the closeest thing to having drift on ALL vehicles so far. I have'n tried, but u might be able to save em w/ red eye. U can also tweak suspention / handling in "hanling.dat" in a rpf directory. Using Open IV, Spark IV, Needle, ect. But I wouldn't recomend using Rps online. They can equal a possible ban. An alturnitive, would b to build your own personal sco.