In GTA SA you get import cars if you export some cars from a list.Where are appearing the import cars?

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