@
GT6_Stig : Here is a simple tune fix that might help you :
This is how I tune the car so it's more stable under braking and cornering ( I don't use ABS or any other aids )
The car still has 528HP, no oil change. Racing Hard tires, easily capable of 1:25s at Brands Hatch GP and 2:08 at Bathurst.
Suspension F/R :
Ride height 70 70 ( go no lower than 65 65 on bumpy track ) I used 60 60 on Brands Hatch.
Spring : 11.24 15.97
Damper compression : 4 3
Damper Extension : 4 1
Ant Roll : 2 2
Camber : 2.4 0.0 ---important - rear at zero gives max possible grip on lower speed.
toe : 0.00 0.00 ( neutral as possible )
Camber hugely affect front and rear grip balance, due to the quirk in camber - zero camber = max grip. Higher camber front to compensate the too much grip at the front chassis ( this grip balance is inside car chassis code parameter )
Brake Balance : 1/10, yes, use this, 5/5 by default do not represent actual bias, the car bias parameter always has some degree of front bias, completely different than in GT5. Check by using 0/0 balance and brake without ABS, front will still lock first. R8 LMS has very front bias balance, 1/10 is used to make the rear more stable ( minimize too much weight shifted forward )
LSD :
Initial : 33
Accel : 36 or 30
Brake : 36 or 30
Use 2 way with high preload to minimize drastic changes during trail braking and exiting corners. Keep the initial high, lower accel and brake if 36 or 30 deemed too extreme. I would recommend 24 accel and 24 brake. If the car power increased, lower to 18 accel and 18 brake.
Lastly : Aero
Aero is for medium and higher speed cornering, you can use max aero 400/900 for technical and non high speed tracks. It's a matter of finding balance, always try ot have at least 450 to 500 gap value.
So, if using 200 front, set 500 rear; 400 front ( max ) use 900 rear ( max ), if the car becomes less responsive at high speed, reduce rear by 50
NO ballast used. Keep it at 1250kg

With more power, I would recommend full aero, increase front camber to 3.0 and keep rear 0.0. Increase toe in at rear to 0.14 or 0.28 and zero or -0.07 toe at front.
Hope this helps to make R8 LMS enjoyable.
Tune should work with ABS 1. Stay away from grass and curb ( rumble strip ), the car do not like these, it will pull to one side before you know it and oversteer then usually a spin or crash due to over correction that leads to snap oversteer