Smooth shifting and responsive. Quattro is a great AWD system, especially in inclement weather.
Audi has one of the finest mass produced interiors in the automotive business. Fit and finish, quality of materials, aura, gauges where needed.
Streamlined with the extra "opera" style window in the rear. Nice lines.
Unflappable. Crash/crumple zones. Great brakes, accident avoidance/emergency handling.