general problems of the 2001 Volkswagen Jetta

I drove through little stagnant water about 6 to 8 inches on perimeter rd. West. After driving through the water, the car began running and idling roughly. The car eventually stalled on perimeter rd. West, immediately south of the blue plains tunnel site. A passing driver honked and yelled to get out of the car because it was on fire. We witnessed flames coming from the underside of the vehicle.

My car smells like gas so bad that I get a headache. Dealership says they do not know what is wrong. No incident but I know most Volkswagen vehicles have this problem. The gas smell must be toxic, so this seems like a safety problem.

My 2001 Volkswagen Jetta has always had a burning crayon smell and has been getting worse. I thought it was only my car until I looked online and saw that there are many complaints on different forums about the same thing. The main concern is if this smell is toxic. On days that the smell is worse I tend to get a headache. Please help.