It’s basically just a 4 Series (new nomenclature for the 3 Series coupé) without a roof, but BMW says it features convertible-specific design features to differentiate it from the other models in the line-up. These include so-called Air Breathers behind the rear arches and Air Curtains to reduce turbulence and drag at the front wheels. BMW has also done a marvellous job of designing the rear, which has always been a difficult element to get right on a convertible.
As standard you get a three-piece retractable hardtop with noise-absorbing headliner to ensure the comfort of passengers. When stowed, the roof pivots upwards to give easy access to the available boot space when needed.
The rest of the interior remains the same as on the coupé, but the convertible has special seats with integrated seatbelts. These seats are electrically adjustable as standard. If desired, the standard as well as optional sport seats with recessed head restraints can be equipped with neck warmers for the driver and front passenger, an optional extra available for the first time.
In addition to the standard model, three specially equipped lines and an M Sport package are also available. The Sport Line, Modern Line and Luxury Line versions can be selected to personalise the new convertible with special interior and exterior accents.
Initially, the 4 Series will be available in three guises: 420d, 428i and 435i. Power delivery ranges from 135kW to 225kW, delivered to the road via a six-speed manual or eight-speed automatic gearbox.