BMW revealed online the 4-Series Convertible more than a month ago and now time has come to show it to the public at the 2013 Los Angeles Auto Show.

Effectively replacing the now defunct 3-Series Convertible, the first ever 4-Series Convertible looks more refined and is essentially a copy of the 4-Series Coupe with the exception of the folding metal roof which needs 20 seconds to open or close. This procedure is done at speeds of up to 11 mph (18 km/h) and you can drive the car with the top down even at lower temperatures thanks to the neck warmers.

Not like it matters a lot in such a car, but the cargo area has increased by 20 liters (0.7 cu. ft.) to 370 liters (13 cu. ft.) when the top is up and once it's folded down the capacity drops to 220 liters (7.8 cu. ft.) which should suffice for short journeys.

The U.S.-spec model will be available in a 428i variant equipped with a 2.0-liter 4-cylinder turbo rated at 240 bhp (179 kW) and 255 lb-ft (345 Nm). If this isn't enough, opt for the 435i that gets you a beefier 3.0-liter inline-six with 300 bhp (224 kW) and 300 lb-ft (406 Nm). The two engines are coupled to an 8-speed automatic transmission featuring Normal and Sport modes. An xDrive system can be optionally added to the 428i version.

If you live in Europe, BMW will also offer you a more frugal 420d powered by a 4-cylinder, 2.0-liter turbodiesel churning 181 bhp (135 kW). The Euro-spec 4-Series Convertible comes as standard with a six-speed manual but for more money the engines can be connected to the aforementioned 8-speed auto 'box.

The 2014 BMW 4-Series Convertible will reach dealerships in the United States in Q1 2014 at a starting price of 49,675 USD for the base 428i model. The more powerful 435i can be had from 55,825 USD.

Gallery: BMW 4-Series Convertible makes world debut in L.A. [video]

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