Skip to main content

BMW does the math: The 4 Series Convertible is the 3 Series Convertible + 1

BMW has finally given up the charade and released the full photos and production specs of the 4 Series Convertible just a few short days after accidentally letting images of the new convertible leak in a German market accessory booklet.

Without the silly bike rack strapped to the back, the new 4 Series ‘Vert looks very good indeed. While untrained eye might think the BMW 4 Series Convertible is simply a rebadged 3 Series Convertible, nothing could be further from the truth.

The new 4 Series Convertible is actually one inch longer, 1.7 inches wider, and sits much closer to the pavement than its predecessor, the 3 Series Convertible. Here’s how BMW puts it, “The new 4 Series Convertible represents something more than its BMW 3 Series cousins – 3+1, if you will.” Thanks for the arithmetic help, there, BMW.

Unlike the European market, which will see a whole slew of engine options, the U.S. 4 Series Convertible will only be offered in 428i, 428i xDrive, and 435i. Just like their hardtop brother, the 428i will be powered by a TwinPower Turbo 2.0-liter four-cylinder engine and the 435i will have the multi-award winning TwinPower Turbo 3.0-liter inline six bolted under its hood.

The redesigned power-folding hardtop will stow away in 20 seconds up to speeds of 11 mph. In addition, the roof now includes a sound-absorbing headliner, which makes for much quieter motoring with the top up. When the top is up, the 4 Series Convertible boast a drag co-efficient of 0.28 and when the top is down, it’s 0.33. What does that mean to you? Well, to put that into perspective, the all-new Mercedes-Benz CLA has a drag co-efficient of 0.23, which is five less than the 4 Series Convertible.

And what does that mean? Well, the 4 Series Convertible is pretty slippery in the air. The CLA is just more slippery. OK never mind. It doesn’t really matter that much; it’s just something that automakers like to brag about.

The new 4 Series Convertible is offered in three more sub-models, beyond the 428i and 435i. Buyers can spec their 4 ‘Vert with a Sport Line, Luxury Line, or M Sport options package.

Sport Line adds gloss black trim bits to the exterior, a sport suspension for rear-drive models, 18-inch or optional 19-inch rims, black exhaust tips, sport steering wheel, and red accents on the interior.

The Luxury Line adds chrome and black accent bits to the exterior, the same 18- or optional 19-inch wheels, leather seating, and Ash Grain anthracite fine wood trim surfaces, and a Pearl Gloss Chrome metal inlay.

M Sport adds an M aerodynamic package, including numerous body components (front apron with large air intakes, rear bumper with diffuser, side skirts), and high-gloss Shadow Line trim. On the outside, Estoril Blue Metallic paint is available only with M Sport on the 4 Series Convertible. And for the true ‘Ultimate Driving’ experience, BMW adds a leather M Sport steering wheel, M Sport suspension (rear-wheel drive models only) and M Sport Brakes.

What will this Teutonic, drop-top motoring experience cost you? The 2014 BMW 428i Convertible will start at $49,675, and the 2014 BMW 435i Convertible will fetch a starting price of $55,825.

Want to know what it might be like to drive? Check out our first-drive report on the 2014 BMW 4 Series.

Nick Jaynes
Former Digital Trends Contributor
Nick Jaynes is the Automotive Editor for Digital Trends. He developed a passion for writing about cars working his way…
The state of solid-state batteries: We may be on the cusp of an EV revolution
Factorial solid-state battery

Electric vehicles may have become a whole lot more popular over the past five years or so, but that’s despite some issues they still face regarding things like limited range and slow charging speeds. The result of these issues is that plenty of buyers are unsure about whether an EV might be for them. But there’s one technology that has been hailed as a savior for all of the EV issues related to batteries, and that’s solid-state battery tech.

This technology has been so hyped for so long that, at this point in time, it seems not only almost mythical, but as if we might never actually see it in the real world. So, what’s the state of solid-state batteries right now, and how far are we from finally seeing them and reaping their rewards? Here’s a look.
What are solid-state batteries?
What is a solid-state battery in the first place? Solid-state batteries keep the fundamentals of traditional battery design, offering an anode and a cathode with a porous separator in the middle, and a substance through which electrons flow from one side to the other. This, in turn, creates a circuit. But while a conventional battery is built with a liquid electrolyte solution on the inside, a solid-state battery instead makes the separator between the anode and the cathode the electrolyte itself.

Read more
Audi RS e-Tron GT Performance unveiled as a 912-hp electric sedan
2025 audi rs e tron gt performance specs pictures features

Audi's roster of past high-performance models includes the rally-winning Quattro and the V10-powered R8, but the new RS E-Tron GT Performance outguns them all. With up to 912 horsepower on tap, this electric sedan stands proud as the most powerful Audi ever built.

Starting with the RS E-Tron GT, which is related to the Porsche Taycan, engineers updated the front axle's electric motor and integrated a new, lighter electric motor into the rear axle to reach the 912-horsepower figure. Audi notes that this mammoth amount of power can only be unlocked temporarily when the launch control function is engaged, however. Other improvements helped the German company add horses to the E-Tron's cavalry, including a new chemistry for the 105-kilowatt-hour lithium-ion battery pack's cells and a revised cooling system.

Read more
Ram 1500 REV vs. Ford F-150 Lightning: Classic trucks go electric
Ford F-150 Lightning

The first Ram electric pickup truck is on the way. The Ram 1500 REV is set to be one of the most desirable electric trucks out there, thanks not only to the Ram name but also to its high-end specifications.

But, of course, it's certainly not the first electric truck out there. The Ford F-150 Lightning is a favorite among electric truck buyers, thanks to the fact that it continues that Ford F-150 legacy with a tried-and-true design coupled with new technologies.

Read more