2021 BMW M3 and M4 leaked: Official images emerge ahead of unveiling

The 2021 BMW M3 sedan and M4 coupe have broken cover in these leaked images. The photos, which emerged on Instagram account CarsWithoutLimits, show the controversial 'coffin grille' nose appearing on both M3 sedan and M4 coupe variants. The leak comes less than a day before BMW's official unveiling, set to occur tomorrow morning local time. DRIVEN: 2021 BMW M3, M4 review: Prototype test