About a month ago, I replaced the optional 19 x 8.5 inch Nickel Painted aluminum wheels with the 19 x 9 inch Brembos, but kept the 245-45 tires, as their max allowable wheel width was 9 inches.

Have noticed a couple of things.

1. The extra half inch of wheel width has spread the tire beads further apart, reducing the sidewall radius resulting in a slight increase in sensitivity to road conditions, likely due to less sidewall flex.
2. The wheels appear to be further outboard than they were with the original wheels, providing a somewhat wider track. The missing piece of information is the amount of offset of both the Brembo and optional wheels...

So far, the net result I sense is improved, flatter cornering, and better road feel... an unexpected bonus