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The wraps have come off the BMW M4 Convertible ahead of its debut in New York later this month, and it is pretty much what everyone expected – the coupé without its roof.

Then again, that has been the recipe for M3 cabrios from the start. It’s worked a treat for BMW so far, and with the 3.0 litre twin-turbocharged inline-six engine from the coupé producing 431 hp and 550 Nm (10 hp, 150 Nm more than the E93 M3 Convertible), that’s not likely to change anytime soon.

The M4 Convertible is a little bit on the porky side, though: with the complicated three-piece folding hardtop from the 4 Series Convertible and the additional chassis strengthening that comes with it, the car weighs in at 1,750 kg – nearly 180 kg heavier than the coupé – although it is about 60 kg lighter than its V8-powered predecessor.

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Performance is still blisteringly fast, however, the car whipping from 0-100 km/h in 4.6 seconds with the standard six-speed manual and 4.4 with the seven-speed dual-clutch transmission (M DCT). Those times are just 0.3 seconds slower than the coupé, and the top speed is limited to the same 250 km/h.

Like the 4 Series Convertible, the M4 cabrio’s roof – operable at speeds under 18 km/h – opens and closes in 20 seconds, while loadspace stays at 370 litres with the roof up and 220 with the roof down. Also carried over from its more pedestrian brethren are the optional neck warmers on the front seats as well as the newly-redesigned wind deflector.