Below we have the Audi A6 sales figures and reporting data for the United States and Canada. The A6 is Audi’s luxurious mid-level sedan. In Audi’s lineup it slots immediately above the smaller A4, and below the large executive-style A8 sedan.The 2018 Audi A6 is often rated the best luxury midsize cars in most comparison tests and with good reason, it is easily one of the most well-rounded sedans on the market. The Audi A6 is good at everything, with an interior that is upscale and classic with amazing build quality, engine choices are plentiful (with the supercharged V6 a solid 340 horsepower in all trims), has the best MMI system with navigation (now standard) and spacious for the whole family. What isn’t there to love? The Audi A6 has some stiff competition in this segment with the Mercedes-Benz E-class, Cadillac CTS, BMW 5-series, Jaguar XF and Volvo S90 breathing down its neck.