This is the biggest risk. Many websites use the "exclusive" tag to lure in clicks. You might download a 50MB file expecting a game, only to find it is a shortcut to a survey, a password-protected archive that requires you to sign up for a paid service, or worse—malware for your PC.
: GTA 4 vehicles (like LCPD police cars) and darker, "gritty" color correction. gta4 ps2 iso highly compressed exclusive
skin, replace some cars with models from GTA 4, and update the HUD (heads-up display) to mimic the GTA 4 style. This is the biggest risk