You can check your owner’s manual or the side of the tires to find your tire size. The tire size will appear as a series of letters and numbers, but you’ll want to pay attention to the two numbers directly following the R, which is the diameter of your rim in inches. Here’s an example of how to find the right hubcap for your Cadillac DeVille:
The 2005 Cadillac DeVille base model tire size is P225/60R16. Here your rim size is 16 inches, so you’ll need 16-inch Cadillac DeVille hubcaps. Once you find the hubcap size, you can purchase a set of Cadillac DeVille hubcaps online for around $295.