In many cases, part of the OEM procedures before shipping a car to the dealer is to over-inflate from he11. I don't know how high they go ... maybe 60 to 80 psi. Why? Because many times the trucking companies strap to the tire, and strap so hard they can damage a tire.
A good dealership is supposed to receive the car and immediately drop the pressures to normal (32 - 35 psi). When I worked for Hyundai-Kia, we heard many complaints from customers about ridiculously high air pressures ... due to dealerships being typical sucky and not properly preparing the vehicle for a customer.
View my fuel log 2020 Mirage ES 1.2 manual: 42.5 mpg (US) ... 18.1 km/L ... 5.5 L/100 km ... 51.0 mpg (Imp)