Last year I attended the education of Automotive Technology, which in short teaches you how to be a Race Engineer. I 'dropped' out recently to start on Computer Science instead, but still talk to some of my old class mates. To get to the point, a guy I knew from a class a year above mine, and still talk to, is at internship at Fischer Racing GmbH in Germany (http://en.wikipedia.org/wiki/Fischer_Racing). Today he made a short Facebook post about how some "Playstation programmers" had been visiting them today, and I obviously had to ask about further details. Turns out a group of people from Polyphony Digital had been there for around eight hours today, taking pictures and apparently also recording sounds of the cars. The cars was stationary and in neutral during the recording though, and only tested at 2000- and 3000 rpm - so it might have been for idle sounds exclusively.. The cars in question are an Aston Martin DBR9, Aston Martin Vantage GT3 and a Ford GT (presumably the GT's used in GT Masters and the FIA GT3 European Championship). I wish I could give more precise information, but as per usual with these kinds of stories, it's not the Gran Turismo fanatic who experiences it first hand. Hope it someone will find it interesting.