This tool lets you change what cars are stored in your garages, the colour of them and whether they are damage proof. It also lets you lock them in there so everytime you open the garage the cars will be waiting for you.
This first version only includes the garages in Los Santos, I havn't unlocked the other cities yet so I can't really test the memory addresses that the cars are stored at.
Just remember that if you add a car into a garage that had no cars in it before, will cause your game to freeze.
Click here to download.