These are all from when the Challenger was my daily driver.
Worst: the beer truck driver delivering to a bar next to my job forgot to set his brake and left it in neutral, and it rolled back into the Challenger, hit it at an angle and turned it 45 degrees. Smacked the right front fender,, right front of the hood, and tweaked the bumper. Then the hood top got dented by some high school twit who jumped up on the hood yelling 'oh my God did you see that!'. Thanks a lot.
Fortunately their insurance covered a replacement hood and fender (never bought the bumber, darn it), but I just stored them and spent the repair money on other parts. After all it wasn't that bad.
Second worst: a week later my brother didn't look when backing up and took out the grille, which had miraculously survived the beer truck with nothing but a few paint scuffs. Some of the insurance money bought a new grille (still available then) which I also still have in the box.
Best: such as it is. The car is a Cali-Nevada all its life and had very little rust. While disassembling the front sheet metal, I found out the right fender was bondo-city; the thing weighs noticeably more than the left fender! Thats probably why the car was repainted white over the original green. Almost nothing anywhere else. And I just happen to have a brand new right front fender : )