[MetalMan]

That sucks! Do you have carpet in your livingroom? I'll bet that the front tires got a lot of traction which put a lot of strain on the BEC. And the higher the voltage being put into the BEC, the more heat that will have to be released. So, the chip could have gotten hot enough to start a fire! The BEC is easily rated to handle a steering servo when the car is actually moving, but I have a feeling that you might have been doing a lot of turning in your livingroom.