To bring up the Car Settings menu, select "Settings" -> "Car Settings" from the Quick Menu that displays before each race. From there you can change the tires of your current car and make other fine adjustments. The Car Settings are as follows:

Settings Sheet
Apply settings sheets for car settings that have been saved from the "Detailed Settings" menu.
・ Front Tires
Select your front tires.
・ Rear Tires
Select your rear tires.

Please refer to the "Races" -> "Tires" section of this manual for more details.

Select "Detailed Settings" to fine-tune your car settings. Please refer to the "Car Settings" section of this manual for more details.