There's no "Restart Game" button—but you can effectively reset in three ways:
⚠️ **Irreversible.** Also deletes *all* profiles' saves on that console.
Hard Drive → Games → Midnight Club LA Complete Edition → [ProfileID] → SaveGame.sav
Copy to USB/Cloud before deleting if you might want it back.
Recommendation: Just **New Game**. Keeps achievements, lets you re-experience progression. Delete save only if corrupted or selling console.