Mercedes-Benz is working on an update for its A-Class compact range, and the latest prototype to be spotted is for the sporty A35 Hatchback from AMG. None of the various A-Class Hatchback models are sold in the U.S. but some of the changes you see on this A35 Hatchback prototype are likely to filter across to the related CLA 35 and GLA 35 sold…