The S Q4 matches the S model’s equipment level but also adds heated rear seats. This version’s major change is mechanical, though, as it gets the advanced AWD system for added grip and faster acceleration. A front active differential and active torque control are further dynamic enhancements. Like the base model, you can add options on like power-adjustable pedals and a powerful Bowers and Wilkins premium audio system. An 8.4-inch touchscreen interface and a ten-speaker sound system are standard.