The front grille remains of the bucktooth variety, though

Whatever trace of summer we have left is beginning to fade away but BMW can’t be bothered. Munich has just introduced the second-generation 4 Series Convertible and before you start looking for an answer to the question ‘why now?’, know that it will only go on sale in March 2021, just in time for a new sunny season.

The U.S. gets four variants at launch: 430i, 430i xDrive, M440i, and M440i xDrive. Scroll down for a better look at the 2021 4 Series Convertible.

The new soft-top needs 18 seconds to close or open at up to 31 mph

BMW Chops Off the 4 Series' Roof and Makes It the 2021 4 Series Convertible
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The new 4 Series Convertible uses a soft-top, that much is obvious. Other than its rather brief closing/opening time, we’re told it weighs 40-percent less than the previous generation’s hardtop and its smooth surface aids with aero and wind noise.

At the same time, those inside gain 0.2 inches of extra headroom, while cargo room takes a 1.2-cubic-feet bump to nine cubic feet.

Four variants available at launch in the United States

BMW Chops Off the 4 Series' Roof and Makes It the 2021 4 Series Convertible
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The 2021 4 Series Convertible range opens up with the 430i, powered by the updated B46 2.0-liter turbo mill with 255 horsepower and 295 pound-feet of torque.

That’s enough to send it from zero to 60 mph in 5.9 seconds on to a top speed of 155 mph (or 130 mph, depending on the wheel and tire combo).

The 430i powertrain can be also had in conjunction with xDrive, but BMW is yet to test this model’s sprint time from naught to sixty.

BMW Chops Off the 4 Series' Roof and Makes It the 2021 4 Series Convertible
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Topping the range are the M440i and M440i xDrive. They both get the B58 inline-six mill displacing three liters with 382 horsepower and 369 pound-feet of torque on tap, as well as a 48-volt mild-hybrid setup that recuperates energy during deceleration or braking but also acts as a performance booster when you need the extra oomph.

0-60 takes just five seconds flat in the M440i (xDrive variant yet to be tested) while top speed is capped at 155 mph or 130, depending on what wheels and tires you use.

Regardless of what variant you pick, power and torque reach the wheels via an eight-speed automatic. In the M440i and M440i xDrive, it works together with a rear M Sport differential as standard (the unit can be fitted on request on the 430i and 430i xDrive).

Inside, you’re pretty much looking at the same layout we know from the 4 Series Coupé. On the tech front, the iDrive 7 multimedia setup is a standard feature, as is the 8.8-inch center touch display and the 5.1-inch screen between the instrument gauges.

BMW Chops Off the 4 Series' Roof and Makes It the 2021 4 Series Convertible
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As an option, you can fit the Convertible with BMW’s Live Cockpit Professional, which gets you a 12.3-inch instrument cluster display (all-digital) and a 10.12-inch central touchscreen.

BMW 4 Series Convertible Specs
430i 430i xDrive M440i M440i xDrive
Engine  2.0-liter, inline-four  2.0-liter, inline-four  3.0-liter, inline-six 3.0-liter, inline-six
Horsepower 255 horsepower 255 horsepower 382 horsepower 382 horsepower
Torque 295 pound-feet 295 pound-feet 369 pound-feet 369 pound-feet
Transmission Eight-speed automatic Eight-speed automatic Eight-speed automatic Eight-speed automatic

2021 BMW 4 Series Convertible - Price

BMW Chops Off the 4 Series' Roof and Makes It the 2021 4 Series Convertible
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The most affordable of the bunch is the 430i, obviously. It starts at $53,000. Add xDrive and the price tag goes up to $55,100. The M440i will require at least $64,000, while the M440i xDrive at a hefty $66,000. The $995 destination fee is not included.

2021 BMW 4 Series Convertible Price
430i $53,000
430i xDrive $55,100
M440i $64,000
M440i xDrive $66,000
Tudor Rus
Assistant Content Manager - Automotive Expert - tudor@topspeed.com
Tudor’s first encounter with cars took place when he was only a child. Back then, his father brought home a Trabant 601 Kombi and a few years later, a Wartburg 353. At that time, he was too young to know how they worked and way too young to drive them, but he could see one thing – each of them had a different ethos and their own unique personality. As time went on, he started seeing that in other cars as well, and his love for the automobile was born.  Read More
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