First time driving the GT4 in this game!
A bit of M2 fibes, only faster.

It's missing that front downforce, so holding the brake ever so slightly in to corners is a must! 

If you are struggling with the rear you can always lower rear ride height.

Only for questions with problems regarding my setup you can DM me on discord.

You will find me on Nils Naujoks his discord as DWiersma7 or in the M4/M6 GT3 setup section.

https://discord.com/channels/689385999792472125/779481042603212811