GamePro recently sat down with Kazunori Yamauchi, the lead producer behind the Gran Turismo series, to talk about what's in store for the popular racing franchise.

Among the many new features in the coming iterations of the Gran Turismo series is GT TV where players can view real-life motoring shows. When asked, Yamauchi revealed that the speed at which videos will become available depends on the type of content.

"If it's race footage, people would want to see it immediately or as soon as possible due to the nature of a race," said Yamauchi. "Whereas a documentary-style program, there is less of an urgency. It could be a month after airing, or shorter or longer."

It also looks like limited Sixaxis support similar to the one in Gran Turismo HD Concept will be included in Gran Turismo 5: Prologue. Players will remember that putting down the Sixaxis controller in GT HD Concept caused a menu to appear. Yamauchi said that these elements will hopefully be implemented in Prologue, but not any kind of Sixaxis steering.

While Gran Turismo 5: Prologue will be available in both Blu-ray and PSN versions in Europe, it looks like the U.S. will be getting only the Blu-ray version of the game. A Gran Turismo title for the Sony PlayStation Portable also looks like a possibility. According to Yamauchi, it would probably come after Gran Turismo 5. "We are working on it, and we will get around to it eventually," he said.