On PC, saves are typically in Documents/PPSSPP/PSP/SAVEDATA/ . If you'd like, I can:
PSP save data refers to the files that contain your game progress, settings, and achievements. These files are stored on the PSP's memory stick and can be transferred, backed up, or restored as needed. cars+2+psp+save+data+free
If you are playing Cars 2 on your phone or computer via the PPSSPP emulator, the process is even easier. On PC, saves are typically in Documents/PPSSPP/PSP/SAVEDATA/
Use a file manager to go to Internal Storage/PSP/SAVEDATA . cars+2+psp+save+data+free