BMW reveals first details on M5 CS debuting Jan. 2021

BMW is set to unveil a new range-topping version of its M5 super sedan next month, and a teaser video posted to its Facebook page on Tuesday provides some key details. The new variant will be badged an M5 CS, placing the M5 alongside other M cars that have received the CS treatment. BMW also offers an M2 CS, and there were CS versions of the...