I Think I mentioned this in another topic, but it was on topic so, I am wondering if anyone has knows about someone named Programist who made modifications the BTTF SA 0.3.2 code and added more features such as all the DeLoreans and improved effects, a teleport code that lets you teleport to in the timecircuits.cs (which I myself am trying to figure out how to make usable on all DeLoreans),a Railroad mission, RC DeLoreans, etc. It also has K.I.T.T and C.A.R.R.
I got it from here: http://bttf-sg-mod.ucoz.ru/load/back_to_the_future/source_code_for_gta_sa/sourse_code_01_03_2012/8-1-0-349
It also looks a lot like Delorean88MP's All DeLorean Add-ons mod.