First time it happen was 6/06, second time it happened 1/26/07. i have a new scion bought it from valley hi toyota, victorville, ca., car came with four low impact tires, manufactured by pirelli. both instances occurred on front tires, first one was passenger side, second was driver side. tires burned from inside out, i feel tires unsafe, dealer says not there fault, i have contact pirelli tires no response as of 1/29/07. *nm