Looks like youve got a rideskinz bumper cover... Thats fiberglass..... Your gonna need a new one if the damage is severe, which it probably is... 75mph? Yea... New bumper time..
EDIT: Just read about your ZL1 bumper, might be salvageable if he bounced off your splitter.. But 75mph and a 10lb possum... Might need a new bumper.