Up to 65 mph, the Lincoln MKZ’s cabin is impressively quiet. Above that speed, wind noise erupts around the mirrors and windshield pillars. The Michelin Energy MXV4 tires on our test car contributed to the sense of solitude, and during an abusive mountain run they remained remarkably silent even as we dove into corners hard enough to scrub the sidewalls. Rough pavement added road and suspension noise to the ambience, but not enough to be bothersome.