Hey Folks,
Here are a couple of links they may help you when trying decide on that next tire replacement. Especially if you are thinking about changing the size.
Go to this site and find your car, make and model.
https://www.automobile-catalog.com/car/2017/2454770/ford_fusion_v6_sport.htmlThis is the link to my car.
If you look down the right side of the page, you will come to the section marked TIRE SIZE with another link to click on. This will lead you the tire sizing page. This page will give you an idea of what size tire will fit on your car with warnings for "WIDE" tires.
On this link you can get can compare sizes of tires with an idea of what the difference will look like.
Also, will give differences in dimensions and what difference on the speedo.
https://www.tacomaworld.com/tirecalc?tires=235-45r18-255-45r18