Congrats on your purchase. Don't let the mileage worry you one bit - these cars are heavy duty and meant to be driven, if cared for they will last a long time. I'm currently @ 102,000 miles and have zero issues, car dynoed the #'s in my sig @ 98,500 miles on a notoriously stingy local mustang dyno.
That is a great color combo by the way, I wish I had the red/black combo interior as the black on black on black tends to get dreary over time.
'08 GT sport/premium, tints 20/35, 18" TSW nogaros w/ bridgestone blizzak winter, 19" sport oem w/ hankook evo summer, Philips crystalvision bulbs, debadged, Vararam OTR, JBA 1-3/4" LT's, ported TB, MF axlebacks, MF X-pipe, DBA-powerslot brakes, russel SS lines, hawk ceramic pads, GXP shocks/struts, lovells poly strut mounts, Slowhawk Tuned 344/356
Gone -'04 GTO A4 2.5" custom exhaust, sweet thunder muffs, H pipe, Z06 heads, Baer brake it, 20% tints, torrid red, AEM brute force intake, tuned