2020 BMW M4 Convertible Holds Onto Straight-Six Turbo, Gets Soft Top And AWD Option

Visit the roads that lead up to the Nurburgring and if you’re lucky, you might actually spot some BMW prototypes, since the automaker’s M Division has a test center in the area.

This latest discovery, courtesy of our eagle-eyed spy photographers, sees the all-new 2020 M4 Cabriolet finally getting its day in the sun. The car is unfortunately heavily camouflaged (inside and out), making out details regarding its design is quite tricky.

Much like that convertible 2020 4-Series prototype spotted back in April, the M4 version also switches from a hard-top design like on the outgoing model, to a soft-top system – a solution that is easier and cheaper to manufacture, and also weights significantly less.

In the case of the current M4 Cabriolet, the hard-top makes it about 505 lbs (229 kg) heavier than the Coupe, so a reduction in weight on that front would be much appreciated. In addition, a folding soft-top will also improve luggage space, so in the end, everybody wins.

Faster and more aggressive-looking

This M4 Cabriolet prototype is equipped with wider fenders, larger air intakes, chunkier bumpers, bigger wheels and brakes, plus a quad-pipe exhaust system. It will be interesting to see how it compares to the current-gen model, seen as how it will employ BMW’s latest design language, which is a lot edgier than before – for better or for worse.

Whether it’s the M4 or the M3, they will both reportedly utilize the same 3.0-liter twin turbocharged straight-six unit from the latest X3 M and X4 M models, meaning 473 HP (479 PS) – or 48 HP more than their predecessors. As for peak torque, that comes down to 442 lb-ft (598 Nm). We could also likely see Competition versions of both the M3 and M4, which could mean 503 HP (510 PS) if the previously-mentioned M-powered crossovers are anything to go by.

It’s also been reported that in base spec, the M3/M4 combo will be available with a rear-wheel drive setup, although all-wheel drive could be offered optionally.

As for the interior of the M4 Cabriolet, we only need to take what we know about the 2020 4-Series’ cabin and add a sportier steering wheel, sports seats, perhaps some carbon fiber inserts and so on.

The all-new BMW M4 is expected to be unveiled circa mid-2020 as both a Coupe and a Convertible.

more photos...

Photo Credits: CarPix for CarScoops

  • B.Stokes

    Hardtop drop top or nothing. Soft tops don’t age well.

    • Matteo Tommasi

      Everyone is going away from hardtop, the only remaining are Ferrari and McLaren (only because of their smaller space to cover)

      • SteersUright

        Should we always be like everybody else? ;P

    • SteersUright

      In most cases yes, I think soft-tops look like crap and also, dont hold up as well. But, I think Porsche 911’s, Corvettes, and Jaguar F-types are a few that look rather great in soft top form. The huge, bulbous soft top on this M4, on the other hand…yuck.

      • B.Stokes

        I agree. I’d add the 6series soft top to that list with the rear fin style design did a good job of keeping the sleek roofline

  • SteersUright

    Looks like a Mustang convertible silhouette, as does the 8-series coupe. The current Mustang is beautiful, so not an insult. But, its also humungous, not a quality I like in my sports cars.
    Also, nary a fender to speak of! Shouldn’t all M cars have somewhat of an aggressive street presence and be more differentiated from their base-car insofar as design? Big wheels and brakes alone don’t cut it. Would’ve liked to have seen a more aggressive shape, in the spirit of the original e30 M3. Last time around, only the sedan got a seriously sexy set of rear fender flares unfortunately. Looking like more of the same from BMW at a time they need to be stepping up their game, per recent news on falling margins and such.

  • drc

    If you squint a little, it looks like a Mercedes Cab from a few years ago. Why are BMW’s getting larger and more ponderous? Is that what their customer wants? I’ve owned (7) BMW’s and what’s coming out now just doens’t work for me.

  • GobbleUp

    So the car will sounds as lame as the current M? Pass yet again.

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