Here is an overview of the game, via Sony Interactive Entertainment:
Gran Turismo 7 builds on 22 years of experience to bring you the best features from the history of the franchise.
Whether you’re a competitive racer, collector, fine-tuning builder, livery designer, photographer or arcade fan—ignite your personal passion for cars with features inspired by the past, present and future of Gran Turismo.
And here are a few more details, via the PlayStation Blog:
From classic vehicles and tracks to the reintroduction of the legendary GT Simulation Mode, Gran Turismo 7 brings together the best features from past installments of the series alongside the future. An even more realistic driving experience awaits thanks to haptic feedback, which brings to life what it’s like when the tires hit the road. PlayStation 5’s immersive 3D audio allows players to sense the position of other cars and drivers around them.
Watch the announcement trailer below. View the first screenshots at the gallery.