BMW has previewed the design of the forthcoming M3 and M4 with the launch of the BMW Concept 4 at the Frankfurt Motor Show. It shows that the new 4-Series will be a radical departure from its predecessor and have a face dominated by a kidney grille so big it could swallow two children. If only Chris Bangle (who, at the time, got his fair share of flak) was still designing Bimmers… The German car manufacturer’s press release appropriately starts out by discussing that grille. According to BMW, “the vertically oriented grille fits seamlessly into both the proportions of the front end and BMW’s illustrious past” and it evokes classics such as the 328 and 3.0 CSi. “The kidney grille has always been a signature feature of BMW cars,” added head of BMW Design Domagoj Dukec. “The BMW Concept 4 presents a confident and classy take on this iconic feature. At the same time, the BMW Concept 4 offers a look ahead to the expressive face of the 4 Series range.” Looking past the vertical kidney grille are slim and aggressive laser headlights as well as huge air intakes to gulp down air. The Concept 4 also features particularly expressive sides and slim, two-section mirrors that are partly finis...