Padded with Japanese cars, with a huge number of the same models, but one might be the American or European version, while the other is the Japanese version. Even Kaz admits that he didn't feel he chose his car list very carefully. There were some absolutely iconic cars missing from GT5, that Forza 3 had. There was a lot of missed opportunity with the cars.
You really come off like a misguided fanboy.
And how does a marketing stunt that only benefits a handful of the players, improve the game at all?
having played all of the Forza titles, I would say that Forza does have its own personality. It has a huge amount of personality, with a really great community and amazing customization options and realism that no other racing sim has yet to match. Being able to turn any stock car, into a race car, with a racing interior even, and then paint it with a real world racing livery, is amazing.