What I hate about each successive GT release is that they add some good things, but disgard half of it in the next release. GT5:Prologue had some good ideas, that evolved the GT concept from earlier games, then GT5 ditched them altogether. That's like chasing your own tail, and wasting a lot of dev and coding time.
The tuning is getting more simplified each time around. Can't set individual gear ratios anymore, nor even save setups - PS3's HD is perfect for that!
Even Prologue had 3 slots, and all the settings on one easy to read page.
Prologue also allowed you to adjust the steering lock, not so in GT5.
I don't get this low, mid and high rpm range turbo only upgrade system
Yes you would either have small, medium or large turbos to do this in real life, but you can also set boost pressure for each turbo type in real life too. The first GT did allow you to adjust turbo pressure :/
I miss being able to flick through each car in the replay using the D pad, now you have to select it from a menu, which is tedious.
There used to be lots of shortcuts with the pad, they're mostly gone now
Hopefully a few patches will fix all the wrongs, and add more rights.. but there are no sure fire guarantees. A lot of stuff that seemed dead certain to be in GT5 before release, are missing....