To add to my previous post, I think I'll collect more than one of each car in some cases, as I plan to at least have a stock version of each car. It likely will depend on what sort of modifications will be available for each model - I could see myself having at least one or maybe even two extra cars of the same exact model depending on how many options there may be. That's before we get into the possibility of multiple potential regulations - especially with the return of the PP system - and I might want to have multiple cars that fit each potential regulation. This is especially for the N-Series cars, as I don't think much will be changed for the racecars in say, Gr.3.
Then there's the likely possibility of new options in the livery editor. Either way, I'm very much looking forward to sharing my creations via photomode, and/or the new scapes. I'm especially hoping that, at least for some cars, we can create something that wouldn't look out of place at SEMA or the Tokyo Auto Salon. Something more like the options in GT6 combined with an expansion of GTS' livery editor, rather than simply being able to change the wheels or add a rear wing like in the PS2-era games. A spiritual successor to the RM system would be welcome, too, as a way to get the made-for-game racers, like the Alfa Romeo 4C Gr.3, or the made-for-game tuners, such as the Mazda Roadster Touring Car.