Wheel choice and color look very good to my eye but yours is what matters. Note that the small brakes on the CX5 will not fill the wheel like image. As for your original question, many people will tell you how terrible it is to increase wheel size (fuel economy, ride comfort, etc.) but my experience has been great. I run the DW06's 255 on a 20x8.5 +40 wheel. I do live in North Carolina so harsh roads and conditions are not an issue. I used to live in New Jersey/New York and potholes would have been a concern. My wheel setup is lighter than OEM so no negative hit there. If the ride is stiffer than OEM, it's not by much. BUT, my confidence in cornering, rain, and stopping is much, much higher than with the stock 19" setup. Search through the "Show me your wheels" thread and you'll find that 20x8.5+40 is a standard, conservative setup with either 245 or 255s. My front is perfectly flush (no poke) and the rear could use a 5mm space to achieve the same flushness. Honestly, I'm still a little disappointed in the tire width. It still looks a bit narrow to me but much better that the skinny OEM legs. I wonder if a 9 inch wheel would have made a difference but I went the conservative route. Hope this helps.