Appearance question....

From the first time I saw a picture of the new Titan prior to their release, I thought the tires looked too small for the body. I just bought a '17 Pro4X and when looking at it from different angles, I still get that feeling. I searched through some prior threads, but could not find exactly what I want to know. First, anyone else feel this way? Secondly, anyone planning on adding larger tires? I will not be lifting my truck, leaving everything factory, so please respond if you have changed out your tires and wheels to a larger size, but left the rest stock. And what size tires/brand of tires. Thank you.