If you insist on your 4 Series Coupé being a convertible, BMW has now answered your prayers. Available at launch in 420d, 428i and 435i (pictured above) designations, the F33 4 Series convertible features a three-piece roof that can be opened in 20 seconds at speeds of up to 18km/h.
Pretty much everything else is the same as the coupé, so knock yourself out below with the pics and press guff BMW has supplied.