No crossfire was ever made with amg badging, but the srt crossfires are all amg cars, but without amg badging... the car you are attempting to purchase is falsely badging as this car has absolutely nothing from amg so it makes you wonder what is the purpose of the badge... a plate attached to the floor of the trunk that reads crossfire?!??! If you are talking about the inside of the trunk... then it is the after market and if you are talking about the crossfire badging on the trunk from the outside than that is standard on all crossfires...

It seams as if you are buying a car with slight modifications you might want to ask some questions about it and I will do my best to explain the mods as neither of these things that you mentioned are standard on the car there maybe other things that the driver has added, but the amg badging definitely raises some questions...

Hope this helps.

- Sidez