The rear of the new 3 Series is propped up by a 5-link multilink setup that's similar, but not identical, to last year's. It's almost impossible to see all five links in one shot, but we'll eventually catch up with all of them.
As we've seen many times before, the two upper links (green) approximate an upper A-arm. The forward-most of the two lower links (yellow) is visible, but the rearmost one is not because it's behind the shock. The slender link at the rear (orange) is the toe link.