Again I come to you oh great ones.... I am leaving in a few hours to get my XLR. I don't think it is certified pre owned, however, it is coming from a GM dealer and is an 06 with 10k. My question is: does it have to be certified? or because it is an 06', is the factory warranty cover me since the in-service date still gives me until 2010? I was also thinking of purchasing an extended warranty from GM or Cadillac later. Any wonderful words of wisdom? Much appreciated! Cheers!