Well, there's some decent exterior changes. Most of this month's car mags have a good rundown. One mentioned that the '05 design basically mimicked the '66 and '67 'Stang, and this '10 version is going for the '68 or '69. The nose will be more sharp, less square, and it's got a bigger hood bulge. Improved interior, and they tried to make it look smaller I guess. Wheels got bumped up in diameter all around too, as I recall.