@Slurm Well, since I apparently sparked this discussion I may as well chime in!
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First of all, and this is gonna be a disgustingly philosophical trick on my behalf, you must ask yourself what is Gran Turismo's concept. To me, what defined Gran Turismo and what made me fall in love with the game was it's RPG-esque nature: taking a meager amount of credits, choosing carefully your first car, slowly improving your driving skills alongside your car as you earn license and credits for improved parts, working your way towards new leagues and increasingly faster drives. It was somehow a "car-owning" simulator, albeit a very early one. GTAuto with it's oil changes and car washes best represents this idea. Having an amazingly eclectic mix of cars is something that can be considered central to GT's concept but it's secondary, in my opinion, to the RPG-esque factor and even enhanced it. It was a game for auto otakus, and that worked for the die-hard fans and for the "casuals" that drove sales into the millions.
What has happened? Why doesn't the concept work anymore? Because PoDi has gotten sloppy. They don't seem to think things thoroughly, they just devout themselves to technological feats nobody asked for instead of focusing on a comprehensive game experience. Remember the Racing Modifications in GT1 and GT2? They were a very interesting way of increasing car count and added to the RPG-esque factor of the game allowing your car to race at a new level. What about the tuning stores in GT4? It was very fun taking your car to either HKS or Ralli Art and choosing the parts of your liking. Both things gone. And don't get me started on that :censored:y spin-off called "Gran Turismo: Sport" that, for all we know, could throw the entire career mode out of the window to focus on e-sports.
Now, it seems to me that what caught your attention of my comment is my critique of GT's mixture of cars. I don't think that has anything to do with the "concept" of GT but rather, again, with it's execution. Instead of taking a small sample of cars that can compete on the same level, say, "2013 Le Mans diesel Prototypes" and assuring a fair race, they just bundle up a bunch of cars that fall within a much wider category "Le Mans Protoypes" as if Group C cars and modern LMPs had something in common besides four wheels and a steering wheel. This could make for races with repeated cars, I admit, but that could be spiced up with a bit of customization and multi-class racing. But no, instead PoDi composes a car list with a bit of this and a bit of that instead of carefully thinking of groups of cars that can race together. A relatively slow LMP Audi made to a set of rules, a fast 908HDi made to an entirely different set of rules, another slow LMP Audi made to yet another set of entirely different rules, and a very fast Toyota that's on a class on it's own...because it was made to, you guessed it, another set of rules. "American Cup", "90s Japanese cars", "Rally cars", those categories are TOO wide and don't work. Add "Vision GT" and other fictional cars to the mix...yeah, that's not gonna work.
GT Sport is going to be critical for the franchise, in my opinion, because it's likely the last chance PoDi is gonna get to fix all these fundamental things fans and customers have asked for ages and they failed to deliver with GT5 and GT6. Fans are getting tired and customers have other options for their "Nawww dude, you're better at a shooting game but I'm better at a driving game" needs. If they rescue the concept of Gran Turismo, they may have a chance. If they focuse on pointless technological feats and step away from what made them different...well, it'd be a real shame
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