Just got this great car and no idea where to begin tuning it to be even more awesome!
try this
Drivetrain
Differential
Initial: 0/10
Accel:-- 0/20
Braking: 0/20
Suspension
Suspension
Ride Height: -30/-30
Spring Rate: 16.0/12.0
Extension:-- 1/1
Compression: 1/1
Anti-Roll:-- 6/6
Camber:----- 2.0/1.8
Toe:-------- –0.2/0.20
Why did you tune it to understeer? This setup is beyond horrible by just looking at it.