2000 Mitsubishi Eclipse body & structure problems

Consumers daughter was driving, noticed black smoke coming through air conditioning vents, vehicle looked to be on fire, consumer took vehicle to dealer, and they could not determine what had cause the fire. Prior to the fire, the engine would start, air condition was inoperative,sunroff was inoperative, mirror were inoperative, emergency brake was inoperative needed to be readjusted,fog lights stayed on even with the key out of ignition, windshield wiper was inoperative, cargo cover was loose, there was a problem…

I have a black 2000 mitsubishi eclipse. Problem1: the hard plastic dashboard deck has cracked all the way across it's width into 3 pieces. The car was never in a wreck or subjected to any unusual forces that would cause it to crack. The replacement cost and especially labor to replace it is expensive. I suspect the plastic used for the dashboard deck is not uv resistant and is breaking down and becoming brittle from exposure to the sunlight.