Found a pair of 245 45 20 tires that I'd like to use. Currently the car is using 235 45 20 all sides per factory AMG setup.

Would it be okay to run 245 45 20 in the back and 235 45 20 in the front? Or would traction control flip out or some other problem occur?

I know I won't be able to do a rotation.

 

The rear will just be wider? I would worry if it could rub. Will all tires be the same manufacturer, type and age? That is what's important for saftey.