After details leaked out of Europe this morning, Sony has officially announced Gran Turismo 6 for PS3 this holiday.

"I'd like to announce today that we are developing GT6 for the holiday season this year on the PlayStation 3," said Polyphony Digital and creator of Gran Turismo Kazunori Yamauchi moments ago.

"10 million copies of [Gran Turismo 5] have been sold," according to the Toyota Europe communications team, which did a better job of tweeting the reveal at the Silverstone Circuit in the UK than Sony Europe. "Gran Turismo is most successful [PlayStation] franchise ever - over 70 million copies sold to date, almost 50 percent in Europe"

Update: We now have a trailer, along with some further details. First and foremost, Sony says a demo of Gran Turismo 6 is scheduled for July. This'll be what kicks off GT Academy 2013, for those of you interested in that.

The new iteration launches with 1200 cars, 33 locations, and 71 layouts. That's seven new locations in addition to those in Gran Turismo 5, and one of the new ones is the UK's Silverstone circuit, where today's event took place. Polyphony Digital's developed a new game engine for GT6, which Sony says "pushes the limits of the PS3," and a new physics engine, which includes new modeling for suspension, tyres, kinematics, and aerodynamics.

Sony says we'll see more of GT6 at this year's E3 and gamescom conferences.