This mod unlocks all hidden cars in GTA VC!!
1. Save the back up file of default.ide file from Data folder in VC's root file..(Its where you installed VC)
2. Just copy paste the default.ide file into the Data folder and enjoy the hidden cars which you'd need to activate with cheats..With this mod you won't need to enter cheats and not even the additional mods for this..

P.S. Sorry can't upload a video..The page is giving me an error..Watch here => https://www.youtube.com/watch?v=2uilxNhqjy8