@Crayon: you are really mistaken. The MX-5 can powerslide, sure, but you cannot properly powerdrift it in GT4. In GT:HD it can both powerdrift and it has the right balance ... and you can also lose control and spin out in some locations in a way that is clearly different from GT4. I have done extensive testing of the grip levels and handling of the cars in GT:HD and played GT3 and GT4 to death, and while I may still be wrong, I'm not easily swayed in my opinion.
Well I'm happy to agree to disagree for now. Should be a lesson to everyone reading that the subtleties of this game are for the most part not measurable and one should take care to feel things out for themselves. It's easy to read an opinion that sounds convincing -my own for example- and have it taint your own analysis.
But.... I guess I got a minute to squabble.
I'm not familiar with your terms here. How do you, Arwin, distinguish between a "powerslide" and a "powerdrift"? I'm assuming by the use of the word "power" that these are both done under positive drivetrain load.
What I personally call "drift" is two or more tires working at high (as in inefficient) slip angles. In discussion with others I generally assume that we are talking about that, but specifically under positive drivetrain loads. ie, "on throttle".