The F33 is the 4 Series Convertible from 2014 to 2020 and the last open BMW of this class with a three-piece folding metal roof. Closed it looks like a coupé and is as quiet as one; open, the roof eats half the boot, which drops from 370 to 220 litres. Its successor the G23 went back to fabric.
That folding roof is why most F33s get broken. Hydraulic pump, rams, microswitches and latching are the classic failures, and on a ten-year-old car a workshop repair quickly costs more than the car is worth.
Up to the B-pillar the F33 is an F32 coupé: nose, bonnet, wings and doors are the same. Convertible-specific are the rear quarters, boot lid, rear apron, rear lights, reinforced sills and rollover protection. The M4 Convertible F83 is the wide version of it.
Condensers sit right at the front on open cars and take stone damage; along with door cards and fog lamps they are what reaches us from an F33.
