Watch the 2021 Mercedes-Benz S-Class' augmented reality HUD in action

The 2021 Mercedes-Benz S-Class won't be debuting until September 2020. However, the German carmaker's been busy serving up some teaser videos to highlight the slew of innovative features in its next-gen S-Class. The latest is an augmented reality heads-up display (AR-HUD). And from the looks of it, the future looks bright for the new S-Class and the automotive industry in …