I purchased an extended warranty from the Warranty Group through CarMax, after a fair amount of pressuring. Shortly before my contract was about to expire, my transmission failed. My mechanic contacted the warranty people, who sent an inspector to look at my vehicle. I keep impeccable servce records, so they had no choice but to honor the claim. Against the advice of the shop, who recommended using GM parts, they sent cheap substandard junk. Lo and behold, the tranny failed again two months later. In the meantime, my agreement had expired. They agreed to fix the tranny again (again, refusing to use GM parts), but are refusing to pay for the tow and rental fees. I am on a relentless campaign to get them to reimburse me for fees that were a direct result of their failure to ensure the proper repair of my vehicle. I suspect I may not see a dime of that money, but I am going to make as big of a stink as possible about these crooks and will refuse to do business with anyone who uses their joke of a warranty!