Whether it is BMW 7-series or Mercedes-Benz S-class series, both of these long-wheelbase models are designed with comfort and luxury. Moreover, these models come with plush interiors, hi-tech equipment and amazing ride quality. The all-new Mercedes-Benz S-class is an upgraded version of the former version with a new engine and more technicalities. However, the facelift is a major take in the BMW 7-series. Both these luxury rivals have been competing for decades now, so let us find out which one stands out.