About Scapes. 3D environment is created and photo (texture) are put on them with camera mapping. HDRI environment photo is taken at same place and used for lighting the cars. Manually placed lights are added for shadows.
If we have problems telling, then imagine how it is for the average PS4 gamer. If someone buys the game expecting the best looking Le Mans ever, he must feel royally screwed by the Gran Turismo team. They should have a "scapes mode" watermark in the corner of every one of those screenshots.
I'm more of a fan of quality and racing and dropping the car count significantly to work on building car models and physics from the ground up for this iteration really makes me want to cave and buy a console this generation. I'm glad that GT Sport is actually going this direction.
If the game's engine is scalable then this iteration could be carried over to newer hardware without having to slap a number next to it. GT Sport could be a great platform to just start releasing tracks and car packs throughout the years rather than waiting for another release entirely.