Go to the mod shops. they are the wrenches on the map. the one in south east los santinos is a low rider shop. the only one in san fierro is a street racers shop. you can only use sports cars to customize. not all can go in though! only five. the ones that cannot go into the normal car shops can go in.(not including brodway, non convertible too, slamvans, lowriders, and bikes.) Enjoy your car!
none unless your a modder. in the hard disk copies you can add parts to a car, but not make them.
Look for question"Where do you tune your car in GTA San ?" you can find it out back there.
Go To www.vicolaships.moi.fr hope this does the trick!
Ebay
it mod actuelly. go to gta4.net and go down to the garage. it should have all the mods you need.
yer
no
blazik
mods.
Dance
yup
Impossible, you can only be CJ but you can dress him up and make him look like Dre.