hey guys, i just had my runner serviced for this sulffur smell. I had no clue there was a whole mess going on. i bought the car in march n didnt get to drive with the windows down until early may n is when i noticed the smell. i dont drive the car that much so i thought it was the breakin in smell. but this was way too strong. and like it says in the forums happens when i accelerate n have the back window down. I called toyota dealer they told me they never heard of this, and had the car inspected, they changed some pipes and some oxygen sensors. i got the car back before yesterday but havent been able to drive it yet to test if the smell still there. hope not cus it really sucks.