is reporting pro wrestler Macho Man Randy Savage was killed in a car accident this morning in Florida.

Florida Highway Patrol tells TMZ ... Savage was driving his 2009 Jeep Wrangler when he veered across a concrete median ... through oncoming traffic ... and "collided head-on with a tree."

Check out one of those legendary, Macho Man-Mean Gene interviews.

And of course there was those legendary Slim Jim commercials.

Police are still investigating the accident, but they say alcohol was not a factor in the accident.   Some reports indicate he had a heart attack.  Savage's wife was also in the accident but suffered only minor injuries.  Macho Man's real name was Randall Mario Poffo, he was 58.  Get more details on his illustrious career here.