Many "save file" websites are filled with pop-up ads, malware, or outdated .max files (Action Replay) that PCSX2 cannot read natively.
You can find pre-made saves (100% completion, all cars, etc.) on: Burnout 3 Takedown -PCSX2 Memory Card Save File-
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Many "save file" websites are filled with pop-up