I just purchased a 2011 SL550 (not a CPO) with a little more than 63400 miles on it. I am thinking of getting an extended warranty for it. Can anyone refer me to a reliable warranty company? I got a quote from American Standard Auto Protection, but the price is considerably lower than most of the others I have seen by several thousand dollars and I can't find any information on this company. Not sure if they are a quality company. Anyone know anything about this company? How about MP Mileage Plus? Any assistance you can provide me in this regard would be greatly appreciated!