Bobby Vercetti

I'm just wondering if you can't take apicture of a car and use that to model from ??,Another thing i have found is that this website gta classics has some AWESOME cars but i have no idea how to install them and they are the ones i am looking for ( more era specific) All the ones i have now are ok ,and i have like 8 nice cars ,but they all installed with vice city mod manager and these you have to install with img tool and THEN edit the COL file ( which gets me lost )