Have a look at the latest F33 4 Series convertible prototype, revealing more of its defining characteristic - its metal folding roof. Earlier spyshots (reposted below) show the hard top operation and the design is largely similar to the current E93 convertible.
The F33 will share the same engine and transmission options as the F32 coupe, as well as the coupe's general styling. So, imagine the coupe that you've
seen revealed, but with this metal folding top.
Production of the 4 Series convertible (both 435i and 428i) begins later this year - in November 2013.
Follow BMW spy photos/videos @
http://www.bimmerpost.com/spyshots/
Folding hardtop in action