The BMW M4 Cabrio features the same 431 hp engine found in its coupe sibling, which guarantees fun behind the wheel. But it also boasts elements that make driving a convertible even more comfortable, including heated headrests.
By Joe Hurley
The family of M models from BMW continues to grow: the last to arrive is the M4 Cabriolet—the convertible variant of the newly introduced M3 and M4 Coupe--which takes the saga to its fifth generation (from the M3 Cabrio). With the same character and mechanics under the hood than its siblings, a few particular features show that the only specific mission of this cabriolet is to offer the most driving enjoyment with the top down.
The source of all this excitement is the retractable hardtop that, with the push of a button, unfolds in about 20 seconds at speeds under 10 mph. As an option, a deflector and a heating system for the headrests minimize any discomfort that may arise from driving topless.
Under the hood, it hides the new 6-cylinder in-line engine and 3,000 cc with M Twin Power technology, which delivers a maximum thrust of no less than 431 hp, available between 5,500 and 7,300 rpm, and maximum torque of 550 Nm between 1,850 and 5,500 rpm.
From the mechanical point of view, the excitement seems guaranteed. However, for a better sports performance, the M4 Convertible adds the general aerodynamic features of the BMW M models: a front skirt that lifts the load on the front of the car and the smooth M gills that channel air minimizing the turbulence in the wheel arches are some of the components that promise precise vehicle control.
Also, there are three modes available in the M adaptive suspension—Comfort, Sport and Sport + —which change the driving behavior depending on the needs (or tastes) of the person behind the wheel. Meanwhile, the M active differential in the rear axle, electronically controlled, becomes essential as a driving aid, in cooperation with the usual DSC or stability control.
And with a weight reduction of 132 lbs. compared to its predecessor, the figures speak for themselves: with manual transmission it accelerates from 0 to 60 mph in 4.6 seconds, while with the optional automatic transmission it falls to 4.4 seconds. In any case, with either variant, the maximum attainable speed is the same, electronically limited to 155 mph. Its authorized consumption is around 9 liters per 100 (26.13 mpg), while its lower emissions are never below 200 grams of CO2 per kilometer.
In terms of equipment, in the new M4 Cabrio, like in the rest of its siblings, the M hallmark is evident everywhere: leather M steering wheel, M shift lever, M slatted doors and footrests are just some of the aesthetic details included in the interior. The power seats—both for the driver and passengers— offer more interior comfort: a detail never overlooked in the M models from BMW. ■
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