I bought one 2wks ago n it caught on fire under hood,wat caused this to happen? on 1999 Pontiac Grand Am

It wasn't running hot or nething temp gauge stayed 200 n 202 n leak marks on carport or didn't notice ne under hood

Asked by for the 1999 Pontiac Grand Am
need more info but maybe it was electrical??? did you notice any funny smells or puffs of thick white smoke bfor it ignited?
Yes sir it smelt like it was over heating but gauge was still at 202 so I pulled Over n turned the engine off n smoke started coming tru the vents inside the car n then flames came frm the hood. N wud u happen to know of ne recalls on it?