I preordered it months ago. Unfortunately, when my wife asked what I wanted for Xmas I explained I'd preordered GT6 and I'll have it on Xmas day. Still, it's nice to have something to look forward to. 
It's funny to be excited about 'driving' a car in a game that we actually own. I think I did more miles last year in the Gt5 Elise 111R than i did in my real one! 
Some years ago I had Gt2 (epic for its time) and had a new MR2 roadster as a company car. I remember blasting around in the PS's MR2 and suddenly thinking: 'What am I doing?  I've got the real thing on the driveway!'  So switched the PS off and went out for a Sunday blast.