[Jason]

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Introducing The New 2021 BMW 4 Series Convertible

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Introducing The New 2021 BMW 4 Series Convertible

• All new 2nd generation of BMW’s 4 Series Convertible.
• More style, power, torque and performance.
• The latest safety, driver assist and infotainment technologies.
• MSRP starting at $53,100 for the 430i Convertible plus $995 Destination.
• Market launch set for March 2021 for RWD variants and July 2021 for xDrive models.

2021 BMW 4 Series Convertible

New convertible soft-top

The new 4 Series Convertible’s top uses large panel bow elements with a honeycomb-design construction, a flush-fitting glass rear window, multiple layers of insulation and a fabric cover available in two colors. The fabric is pulled taut when the roof is closed, giving the car a coupe- like appearance with a classic fabric top convertible feel.
The soft-top roof color choices include standard black and an optional Moonlight black which gives the fabric a classy metallic shimmer, especially in direct sunlight.

The soft-top is also approximately 40 percent lighter than the previous generation’s hardtop. The smooth surface, when closed, improves the 4 Series Convertible’s aerodynamics and reduces wind noise. The effective insulation allows for quicker heating of the cabin in colder temperatures. Another benefit of the fabric top is an extra 0.2 inches of headroom when compared to the previous hardtop.

Opening and closing the soft-top takes 18 seconds and can be performed at up to 31 mph. The three bow panels fold neatly into a compact Z configuration which can also be performed via the remote key thanks to the Comfort Access system which is standard on the M440i models and optional on the 430i models.

The compact dimensions of the folded soft-top increase cargo area to 9.0 cubic feet, an increase of 1.2 cubic feet over the previous 4 Series Convertible. The top features a safety mechanism which prevents it from being lowered if the trunk area is filled. A pass-through door in the rear seat allows for longer items to be carried inside the car.

A standard wind deflector with two mesh elements can be fitted in the rear to reduce both wind noise and air turbulence. When not in use, the deflector can be stored either within easy reach behind the rear backrest or in its fitted bag in the cargo compartment.

Exterior Design and Improved Aerodynamics

The new 2021 4 Series Convertible is 5.2-inches longer (5.3-inches for M440i models), 1.0- inches wider and 0.1-inch higher. It also has a 1.6-inch longer wheelbase than its predecessor. The front track has grown by 1.5-inches, accentuating the wider and more aggressive stance of the low-slung open-top cars. The new 4 Series Convertible’s aerodynamic properties are also improved over those of its predecessor (by 0.02 Cx) thanks to the sleek new soft-top, a nearly sealed underbody and numerous improved aero aids such as air curtains and air flap control.


Power and Performance

All models of the new 4 Series enjoy a boost in horsepower and torque over the models they replace. Powering the new 430i and 430i xDrive Convertibles is an updated B46 2.0-liter 4- cylinder BMW TwinPower turbocharged engine delivering 255 hp @ 5,000 – 6,500 rpm (an increase of 7 hp) and 295 ft-lbs. of torque @ 1,550 – 4,400 rpm (an increase of 37 ft-lbs.). The 430i Convertible accelerates from 0 to 60 mph in 5.9 seconds (tbd for 430i xDrive) and reaches an electronically limited top speed of 155 mph or 130 mph depending on the selected wheel and tire combination.

The new M440i and M440i xDrive Convertibles are powered by the B58 3.0-liter inline 6- cylinder BMW TwinPower turbocharged engine producing 382 hp @ 5,800 – 6,500 rpm (an increase of 62 hp) and 369 ft-lbs. of torque @ 1,800 – 5,000 rpm (an increase of 39 ft.-lbs.). The M440i Convertible accelerates from 0 to 60 mph in 5.0 seconds (tbd for M440i xDrive) and can reach an electronically limited top speed of 155 mph or 130 mph depending on the selected wheel and tire combination.


Passive safety and rollover protection system

A comprehensive passive safety package maximizes occupant protection in an extremely wide range of situations. In addition to the super-stiff passenger cell and highly resilient supporting structures, there are integrated safety electronics which deploy the restraint systems at the optimum moment and with the required effect for the type and severity of the collision at hand.

The hot-stamped steels and aluminum alloys used for the safety passenger cell are supplemented by multi-phase steels for extra reinforcement. The reinforced side skirts are manufactured from tailored rolled steel blanks with varying wall thicknesses to cater for the different loads. There are also high-strength side impact members in the doors and seat cross- members to reduce deformation depth in the event of a side-on collision. The full ensemble of restraint systems comprises three-point inertia-reel seatbelts with belt tensioners on all seats, as well as front, head and side airbags whose deployment is controlled by the central safety electronics.

The new BMW 4 Series Convertible’s rollover protection system is triggered automatically the instant the central safety electronics indicate the car is at risk of turning over. The system consists of two protective bars made from high-strength aluminum and fitted out of sight behind the rear-seat head restraints. In hazardous situations, the pre-tensioned bars are extended by a pyrotechnic charge in a fraction of a second and combine with the extremely sturdy windscreen frame to create a survival space for the occupants.

Link to full press release [PDF].

[No Boost]

The G23 just up'd the ghastly factor already abundant with the G22. Completely murdered out M4 or nothing as far as the new 4er lineup goes IMO.

[secretanchitman]

Interior color is nice, is it oyster?

[Poodle]

Prefer hard top to soft ones...

[Drj161]

it feels weird to be paying 50-60k for a 4 pot engine. how times are changing

[psuibmw]

Looks very weird with no roof and big grille

[f32nash]

hard top > soft top

[TrueLoyaltyInc]

Originally Posted by Poodle

Prefer hard top to soft ones...

I agree! I'll keep my hard top drop F83.... wish it was a hardtop drop I would love it more..

[stein_325i]

I really hope that green looks similar to oxford or fern in person, been waiting for green to return to BMW's lineup for quite some time and hope it stays.

A dark and elegant green like the e46 in this picture would be perfect on the new BMW's!

[mattssi]

Looks like an Audi! Not too mad about that though.

[DRKNEVL]

Again I'm not even going to say anything about that awful grill... but now BMW is going backwards to a soft top instead of the hard top convertible? Seriously!? wtf is going on.

[Vanity80]

Originally Posted by DRKNEVL

Again I'm not even going to say anything about that awful grill... but now BMW is going backwards to a soft top instead of the hard top convertible? Seriously!? wtf is going on.

Weight saving as it should be.

Have you ever driven a hard top? It steers like boat, heavy in the corners and is overall bad a driving experience.

You guys are never happy, people were complaining about the hard top for years for the reasons mentioned above, now BMW is being criticised for hearing people's feedback and getting it right.

[Tommy L Garage]

I love the fact that that it is a soft top.

[MachinesWithSouls]

Originally Posted by DRKNEVL

Again I'm not even going to say anything about that awful grill... but now BMW is going backwards to a soft top instead of the hard top convertible? Seriously!? wtf is going on.

Because it ruins driving dynamics and if you're that concerned about weather and looks the coupe is right next to it in the showroom.

[Professor///M]

That front end doesn't look that bad... It looks horrendous.

Looks like a cheap audi that got hit by a lexus. Looks like they're going to bank on the CPO market.

[Sedan_Clan]

Looks good.

[///AVM]

How did BMW manage to make the front end look even worse when all they did was modify the roof?

///AVM

[figuec56]

I like it a lot. I think it looks better than the coupe. And the back end looks like the 8 series. Still not sure on the grill, but it looks better with the top down.

[DCG]

I can care less about convertibles.

What is up with BMW pushing this trendy and tacky metallic emerald green 🤢 color??? To me it's hideous 🤮 and doesn't suit the brand at all. Looks like women's tacky nail 💅🏻 polish, and as typical I guarantee it's women picking these paint colors.

The Emerald green M3 and M4 with gold ✨ rims is the only hulk green version that looked of anything decent. Have fun on the resale market in a couple of years. To each his own, but NOT the right choice BMW! Brand heritage and race lineage matters. Offer green that's fine, but don't overhyped it that is a huge mistake.


There's only a couple cars that look good in green ✅ and that's jaguar, range rover, old willy jeeps.

[psuibmw]

Originally Posted by jstein55

I really hope that green looks similar to oxford or fern in person, been waiting for green to return to BMW's lineup for quite some time and hope it stays.

A dark and elegant green like the e46 in this picture would be perfect on the new BMW's!

This E46 design is priceless Yes, agree on green, though IoMG is not bad so far

[stein_325i]

New "sprint mode" sounds interesting. Is this like Porsche's sport response button?

Besides standard Launch Control the 8-speed Sport automatic transmission on the M440i and M440i xDrive Convertibles feature a brand-new Sprint function. Pulling on the left shift paddle for at least a second engages the Driving Experience Control switch’s SPORT settings for the accelerator response, exhaust note and gearshift characteristics. At the same time, the transmission will drop straight into the lowest possible gear for maximum acceleration. SPORT mode displays appear in the instrument cluster and the word SPRINT flashes up

[Al Pinã]

Originally Posted by Vanity80

Weight saving as it should be.

Have you ever driven a hard top? It feels like steering a boat, heavy in the corners and overall bad driving experience.

You guys are never happy, people were complaining of the hard top for years for the reasons mentioned above, now you criticise BMW for hearing people's feedback.

Welcome to Bimmerpost! The place where people will offer their unsolicited garbage-ass negative opinion on things, then 6 months later have a change of heart and become a fanboy of the very thing they hated so much.

It's a metamorphosis; like watching a moth turn into a dog turd, but somehow a bit sadder.