The only way to keep the track-width as wide as possible it, is running the most positive offset, and axel width for the most cornering traction. That's how modern cars do it, which is why the deep-dish wheels vanished. It's like the difference between standing with your feet side by side, versus standing with your feet wide apart and see how much more stable you are leaning side-to-side with your track-width, and you will understand. I know some of you might even try and do it, leaning with yourself for fun!
I have no idea how a pro-street car can take a fast corner? I know it is all about the look.