Ever since Gran Turismo 7 has been confirmed for the Sony PlayStation 4 consoles, fans have been looking forward to know what's next for the popular car racing video game.

Game developer Polyphony Digital is determined to beat Gran Turismo 6 and make better on the upcoming title. According to reports, the PS4-exclusive title would have upgraded visuals and graphics to give players a better gameplay experience.

Among the new features expected in Gran Turismo 7 is the addition of a new map, which would prove to be the most challenging highlight of the upcoming title. In July 2014, IOM Today reported of the possibility that a new racecourse would be included in the new game.

Rumors that the Isle of Man's Mountain Course, which gained popularity as one of the most difficult courses for the Isle of Man Tourist Trophy (TT) Race, is included in "GT7" have circulated in the past months.

As IOM Today noted, police in the area issued an advise to motorists of a slow-driving car that have been recording the scenery in the area, which would reportedly make the backdrop for the game. The Mountain Course is already famous for motorcycle races and there seemed not much difference if a car race would be held there.

Gran Turismo 6 already had improved audio quality, but the developers at Polyphony Digital are looking for ways to further enhance it. With former Microsoft Audio Production Director Mike Caviezel now on board the team, the possibility that GT7 would have the best audio quality among the franchise is not impossible.

PlayStation Lifestyle reported that the former Audio Lead for Microsoft's car racing game -- Forza -- transferred to Sony in April and would be working on the Gran Turismo title. His past experience working on Microsoft exclusive titles certainly gave him an advantage.

While new things are in store for the game, Polyphony Digital CEO Kazunori Yamauchi promised that older cars would still be available in the new game, reported Eurogamer.net.

"I doubt that we'll be throwing away the standard cars," assured the CEO. "Each car has its own fans. So I think we'll hang on to the archive. In the meanwhile, some of those cars we may be able to make into Premium cars as they become available - but basically we're more focused on increasing the number of premium cars."

In the past, Yamauchi expressed confidence that the game would hit shelves in 2014. However, with so many changes and upgrades, it seems that the title has been delayed to late 2015 or early 2016, wrote Breathecast.

Meanwhile, the game's trailer is set to make a debut at the upcoming E3 conference in June.