99-911

In my book:
For street driving: Cold pressure means the car has not moved for 6hrs or more, before sunrise, regardless of temp.
if you're adjusting pressure after more than 20 min of driving, pressure shouldn't exceed cold pressure + 4psi.

VII7

In general 5 scenarios, 3 of them don't apply to most people.
1. Normal speeds - normal load: Low pressure setting, usually most comfortable with good grip and tire wear
2. Normal speeds - loaded vehicle: Medium increase in pressures to avoid overheating tires
3. Sustained high speeds (>100 MPH) - normal load: Higher pressure setting to avoid overheating tires
4. Sustained high speeds - loaded vehicle: Highest pressure setting to avoid overheating tire, reduced grip and harsher ride, (Do not exceed tire max inflation pressure)
5. Track driving - Pressures at low end of spectrum according to track and conditions to maximize grip

​​​​​​

H2Owon

If you want the best contact patch and best even tire wear in a car with generally one passenger and not loaded with baggage, use the suggested "comfort" tire pressures. That should be around 31 front, 36 rear psi cold but check your manual for wheel size and tire type to confirm. The door label pressures will give you over inflated tire wear, and drastic oversteer reminiscent of early 911s which switch ends if you lift throttle in a too fast corner.