2021 BMW M3 spied with M Performance parts - UPDATE: teaser video

UPDATE: BMW M has released a tasty teaser development video for its upcoming new M3. We've embedded it at the end of this story. The new-generation 2021 BMW M3 has been spied testing numerous times, and this week it has been spied again with a number of enhancements. Although it wears as much camouflage as we've seen previously, a few visible extras make it clear – or as clear as can be at this stage – that this car is likely equipped with some M Performance goodies.