Select a "Donor" car for parts and a "Recipient" car for the base, then use the transfer buttons to apply changes.
Use a PC application like the GT6 Garage Editor to load your save file. gt6 hybrid editor
Save the modified data back to the USB and copy it back to your PS3. Official vs. Community Editors Select a "Donor" car for parts and a
Modding can corrupt save files or lead to online bans, so always keep a clean copy on a USB drive . gt6 hybrid editor