Formula 1 has released its 2020 race calendar, featuring a new record of 22 grands prix in a single season. We take a look at the changes that have been made from 2019 - which new races are coming in, what next for Germany after it lost its slot, the first clash in four years with the biggest sportscar race in the world, and how F1 is fitting more races than ever into the same March-to-November timeframe