This game's little too in-depth for that in my opinion.
Ambient and track temps, length of race, etc, will make a large impact on what settings you should go with as far as pressures, camber, etc.
Next, all the lmp1 cars a different, each with vastly different handling characteristics.
Last, lmp1 cars, like the Formula cars, have varying levels of performance that can be unlocked based on driver skill. A fast LMP1 car is not necessarily easy to control, a stable one not necessarily fast. It really depends on your preference, style, and skill level.