just stand in front of the export wanred sign and a buying option will appear.
Import cars are better as they will last forever.....
if it is a company not based in the USA, it is an import
You cannot, GTA SA has a much lower graphic system then GTA IV, plus the cars in GTA IV have more addons than GTA SA.
This would require a mod, downloaded via a computer. If you look at GTA dedicated sites on the internet, for example gtawiki, you should be able to find details in their modification sections for...
bloodring banger