Checked mine this afternoon it was at 55psi
How old is your car?
but on the tyre wall it says maximum 60 psi 
And now read the rest of that sentance on the tyre!

It should say sommat like "for US and Canada only",

and isn't applicable to the rest of the world who are able to use a little common sense!

is it wise to inflate it past tyre max. 
Wont do any harm to add another 10psi or so, to allow for gradual leakage.