Websites offering a 2GB "BeamNG.iso" for PPSSPP are lying. If you download it, you will either get:
is an emulator for the PlayStation Portable (PSP) . It runs games designed for the PSP hardware (titles like Grand Theft Auto: Vice City Stories or Need for Speed ).
BeamNG.drive is for Android or the PPSSPP emulator . The official game is a high-performance PC simulation that requires powerful hardware to run its complex soft-body physics engine.
: Some downloads from unofficial sites can contain malware or viruses.