1999 lincoln town car

My headlights Works fine but my tail lights comes on and off sometimes so I drove with one foot on the brake and one foot on the gas to make it to the store and luckily the tail light jump on when I got there so I left my car running until I came back but when I open the car door it was full of smoke something was burning from under neath the ash tray and what ever was on fire.drop on my floor and burn a hole through my floor I had to call the fire department and they said it smell like wires were burning and it was an eletrical problem can u help me please????????