Actually, it varies by what brand of tires you have on the car. Check your owner's manual, it will show different pressures for Michelin, Pirelli, etc.
also, ask the question as it relates to street or track driving? one more thing.....it was advised to me a while ago from an Engineer that worked for Goodyear, to ride with a few extra pounds of air in the tire above what the car manufacturer recommended. his logic was that the car manufacturer wants you to have less air to give a softer ride and the tire manufacturer suggests a few extra pounds to help the tire last longer. I am not an Engineer, but if you think about it, it makes sense!
I use the OEM tires (Expedia S01) and the OEM pressure (2.5 bar front, 2.2 bar rear). Tire wear is even but i am not getting into sophisticated stuff such as measuring thread temperature profile after tracking the car etc ...
