You lost me on a few points. You mention "everyday" cars like the GTI or...C63 and M5? Those are absolutely not "everyday" cars lol. They're very rare and still very expensive even in used condition. My idea of a starter car is exactly the type of car a high school or college kid would drive - Honda Fit, Toyota Corolla, etc. Something boring and miserable which has been exactly where GT has always started out. Plus, these cars are actually the cars many people own in real life because they're cheap and common, meaning players can own and tune the car they drive in real life. That's pretty cool.
As for Gr4 cars, I'd argue there isn't enough. As an entry-level race series, Gr4 is the most popular series of cars in the whole game, and a major goal of PD should be to represent as many manufacturers as possible to allow people to race their favorites. For example there is a real-life Alpine A110 GT4, a real KTM GT4, and a couple other real GT4 versions of cars in the game. I would much rather see examples of real race cars that can be used in competitive BoP online races than ridiculous and unattainable - and often undrivable - examples of hypercars. There is a purpose behind grouping race cars into series rather than allowing modifications.
You also mentioned the Boxster as being "not that good", assuming you're talking about its performance, which isn't the point. I'd argue that the Boxster is one of the greatest Porsches of all time simply because it saved the company from going bankrupt. Porsche might not exist anymore if the Boxster had not been successful. Don't forget that while Porsche may have been reasonably successful in racing, they were never actually a global leader in automotive engineering until they started making big money in the 2000s of the back of the discount-developed Boxster and 996, and later Cayenne which was platform-shared with VW. Porsche did not have a leading role in VW development until the mid-2000s after VW had dragged them back from the brink. You might not like the Boxster but it's one of the most important cars Porsche has ever developed. It also arguably spawned the resurgence of sports car manufacturing throughout the 2000s.
Everyday cars in the sense that they have usability for the owner's daily life. It's impossible for everyone to get their real car in the game. Do you have any idea on how many people will actually get to "own and tune the car they drive in real life"? Maybe what, 5 of the player base? Screw those who don't get their real car in game, right? No, the reality is this, modeling cars takes too long and too many resources to just model random stuff. Plus, people change car fairly frequently. Plus, there are way too many models and versions and generations to choose from, it's not like there are any easy/obvious choices.
GT in the past had a great amount of normal cars, because they could afford to. And the game was successful, because it was good and ahead of it's time, not because it had those cars. The variety in the car roster helped.
Said that, people need to realise that, if they own a VW Golf of whatever generation, and the game only has a Golf GTI or a Golf R from that same gen, it should be enough. If people own a BMW 330i, and the game only has the M3 from the same model, it's enough. People need to check their egos, just because they own a certain car, doesn't mean it should be in the game. PD needs to prioritise which cars they choose. And the logic of picking the performance versions of an ordinary car, makes a lot more sense, than picking a normal, slower version of that car. They represent well enough the car some people may own, without feeling like a waste of resources for the rest. See, it's a matter of balance.
As for Gr.4, Gr.3 seems more popular, and we barely got any new cars on that classe either. For Gr.4, with proper BOP, we could technically turn a road car, into a Gr.4 car. As for real GT4 cars, I agree there are some interesting options, like Alpine, the KTM, and I would add the Gineta. Choosing any of those over a McLaren P1 or a Porsche 918? No. There are only 2 or 3 hypercars and close to 30 Gr.4 cars in the game, but somehow people manage to act like the game is filled with hypercars.
As for the Boxster, again I'm not contesting the reasons behind it, but the fact that PD never looked much into what is "relevant". I gave the example of the Audi quattro, which was a game changer at the time, and is yet to be seen in the game, and any other newer Audi road car. And yes, not that good to drive (the Boxster), specially compared to modern day Porsches. Porsche themselves would most likely rather have one of their better/most popular cars in a game, rather than the original Boxster.
