The difference between the starting prices for the base models of the XC90 and Q7 is significant. You can expect to pay several thousand more dollars for the Q7 across the trim levels and configurations. If you elect for the full outfitted Audi SQ7, you could be paying over twenty thousand dollars more than the top-of-the-line XC90.
With the built-in quality of the new XC90 and the lower prices, you could get more of the features that matter most to you while paying less.