Every different iteration in this series has brought a number of cars from the previous version of the game and then added new cars. The tracks and cars that are to be included in Gran Turismo 7 have not been confirmed yet. The series had come under fire in prior years for not having very realistic sound effects for the cars as they raced around the countryside and the tracks and Caviezel was likely brought in specifically to add a new air of realism to the way the game sounds. The audio expert had previously worked on other car racing games such as the Forza series. Caviezel has long been heralded as one of the industry’s finest ‘sound guys’, and he will be bringing all his expertise to GT7. Polyphony Digital took on Mike Caviezel as its Senior Audio Lead in the spring of 2015. In total, the report indicates there were 13 AI engineers and a graphics engineer brought on board to help with bringing the game to market. In September of 2015, Polyphony reportedly brought in even more developers for its staff. He added again that working with the PlayStation 4 will make changing and improving the physics of this game much easier than when the company was using earlier versions consoles. Yamauchi said he and his team are working to solve many of the problems that other entries in the series have had with physics.
In a June interview, the producer said that his company, Polyphony is taking impact simulation very seriously. One of the ways in which the game will set itself apart from Gran Turismo 6 is that the game will have better crash physics. By that I mean it’s going to be a game that matches the very era that we live in, in 2015 or 2016.” It’s not entirely clear what that comment means but it seems to indicate that the game will be taking advantage of all the technology that is available. The producer added that he had a vision for Gran Turismo 7 and that vision is to do everything they couldn’t do in Gran Turismo 6.
The high quality of data that we have being rendered on the PS4 I think is going to make an incredible difference.” “Everything will be running naturally,” Yamauchi said in the interview. He also made comments in the later interview that it has become quite a bit easier to develop the game on the PS4 compared to the PS3. In a later interview, the famed Gran Turismo producer did mention that it likely wouldn’t be 2016 or 2017 until the game will be released. Yamauchi also mentioned that it will be based on the same physics engine that Gran Turismo 6 uses. Instead, In an interview with Japanese magazine Famitsu (and translated by Polygon), series creator Kazunori Yamauchi mentioned that GT7 would be coming to the PlayStation 4 console, possibly “in a year or two.” That was in 2013 and the game is not expected to launch now until 2016 or 2017. Unlike other big time games, Gran Turismo 7 wasn’t announced at a major press event.