Well, after reading this I think that it's going to be impossible to decide until it is decided what kind of game this is. That of course will never be agreed on.
From a Gran Turismo 2 interview:
"We are planning to have as many cars as possible, " Yamauchi explains, "with as many American and European cars as we possibly
can. We are also planning to have at least 20 tracks in here too, including dirt tracks. The long-term plan is to make GT more than just a game, I want it to become an encyclopedia of cars--not just for everday cars, but also for motorsport vehicles. We are moving toward this goal, and GT2 is well on the way to achieving this.
From a 1Up Preview discussing GT5: Prologue.
Even back in 2001, one of the Gran Turismo's ultimate goals was to become more than a game; it aimed to be an encyclopedia of cars.
There we go. It is Kazunori Yamauchi's creation, he has an ultimate goal in mind, which includes all the cars you wish to complain about. Your wants do not matter. That you bought the game without knowing this in advance tells me that you may not have played a GT game before and you are now whining because GT5 does exactly what the series has been doing for over 10 years.
[/thread]
If that's so, then they're doing a terrible job of it. I would bet Skylines, Miatas, and GT-Rs make up at least 1/4 of the cars available. If you're going to have crappy cars, Americans got just as screwed as they did with race cars. How about an 88 Celebrity Eurosport or a Cavalier Z24? I don't know European cars, but I'll bet they got just as screwed on their crap cars, even with 30 different Audi's.
Yugo, anyone?
So, you fully understand what goes into making a game of this scope and know for a fact that a conscious decision was made to include a lot of Skyline and Miata variations at the cost of not including something like Porsche or even an 88 Celebrity Eurosport.
To quote Yamauchi again:
We are moving toward this goal,
AKA, it has not been achieved, and he knows it. He doesn't need the Interwebs to tell him.
Then, even if you think this is supposed to be a racing game, what is wrong with any of the cars? I can tell you right now that if it were owned by a teenager at any point in history it has been raced. I for one know what it is like to race an 85 Plymouth Horizon and 88 Buick Somerset. I know that the Horizon can break 100mph and that the Somerset's digital speedometer just starts flashing at you at 85mph. I also know that both can get air time under the right conditions, but they aren't rally cars.
Any vehicle can be raced. So, even if you are determined this is a racing game, any car can be used. In the history of GT I have had station wagon races, SUV races, and various other things that just seemed silly. Why? Because they were there and can be raced.
Nothing you say seems to hold up as more than personal opinion. Yamauchi wants every car he can get, so your complaining is just disagreeing with him, and any vehicle can be raced, so your racing game idea is based purely on what you think should be in a race.