Polyphony Digital boss Kaz Yamauchi has admitted that Gran Turismo 5 occasionally dips below a 60fps frame-rate - but said that his studio is "working towards perfecting" the game.
Sony announced last week that the release of GT5 would be delayed around the world - with a US and UK launch looking likely to come in December.
Speaking to the new issue of PSM3 magazine in a must-read 10-page GT5 feature, Yamauchi said that frame-rate was a "major issue for us in GT5".
He added: "Our engineers complain every day: 'Isn't it enough that it's in 1080p? Does it have to be 60fps too?' But I think 60fps is very important, so we're working towards perfecting that. There might be times when you have a certain combination of conditions that come together - especially with the weather effects - [when] the game might briefly drop from 60fps, and for that I beg your forgiveness!
"If you're going from a standing start at No.16 and all 15 cars in front of you are kicking up water, there might not be 60fps at that moment."
You've got to appreciate his honesty.
PSM3 issue 133 - which also features the definitive pre-launch verdict on Call of Duty: Black Ops - is with subscribers now, and will be in store later this week.
Order PSM3 here, and have it delivered straight to your door,