My view on the customizability of cars in gt6 is :
Tyres/Tires : I want to know what brand and model i'm putting on so a sports soft would be a Toyo 888, etc.I also want Drag Radials in the game.With tuning i would like to set each tyre pressure individually.I also want to be able to change the tyre sizes (profile & width).
Aero parts : I want proper named aero kit/parts not just ''type a, type b etc''
Seibon,Nismo,Mugen,Hammam,Brabus.Also more carbon parts like Bonnets,Wings,Lips,Doors,Boots(trunks),Fenders,Etc.
Wheels : Same as above really along with more choice of wheel designs,Makes,Models.Also like to change wheel sizes, profile and width.
Brakes - I want size upgrades,disc and pad upgrades,big brake kits,OEM upgrades to ceramic brakes where possible also let install makes like Brembo, Stoptech,AP Racing.
ECU : I want to be able to set things like Boost pressure,Anti Lag,Launch Control,Air/Fuel Mix,Timing,On Honda's be able to set Vtec ingaugement/crossover point,Rev limits,The list could go on.
Exhausts : Branded exhausts for a start so Milltek,Akrapovic,Supersprint,Fabspeed,HKS,Blitz,Prodrive,Etc.I want exhaust diameter upgrades so 2.25'' 3'' 3.5'' 4'' etc, I want to see want the exhaust is made of aswell so Stainless Steal,Titanium,Etc.AND PLEASE GET CARS SOUNDING LIKE THEY SHOULD DO.
Weight Loss,Rigidity Improvements and Interiors : Install Rollcages,Removal of seats,Race seats and Harnesses,Being able to install Boost Pressure,Air/Fuel Mix,Oil Temp and Oil Pressure Gauges would be cool and have them working unlike in gt5.
Will think of more stuff i'm sure and will edit with them.
Jay