BMW announced that it will, as suspected, publicly introduce the 2015 BMW M4 convertible at the 2014 New York auto show. We’d spied the drop-top BMW M4 testing multiple times over the last several months, but we’ll get our first full, in-person look later this month.
It’s no surprise that the 2015 BMW M4 convertible will utilize the same 425-hp, 3.0-liter turbocharged inline-six as in the 2015 BMW M4 coupe. However, convertible parts such as the power-retractable, three-piece folding hardtop do add a fair bit of speed-killing weight. Although it is 90 pounds leaner than the outgoing BMW M3 convertible, the M4 convertible is still 755 pounds heavier than the 2015 M4 coupe, at 4055 pounds. (Some, but not all, of the weight discrepancy comes from the fact that the M3 and M4 use a carbon-fiber roof panel.) Trunk capacity with the folding hardtop totals 13.0 cubic feet, which is an improvement of 0.7 cubic feet over the outgoing M3 convertible. The hardtop folds completely in 20 seconds and can be used at speeds up to 11 mph.
The added girth means that the 2015 BMW M4 convertible reaches 60 mph in 4.2 seconds when equipped with the seven-speed dual-clutch automatic transmission—0.3 seconds more sluggish than the coupe. With the standard six-speed manual, the M4 convertible does the same sprint in 4.4 seconds.
This slight decrease in performance should not discourage BMW and M enthusiasts, especially those who would trade those brief 0.3 seconds for the open-air joy of a convertible. Even at high speeds and in low temperatures, the BMW M4’s available three-temperature neck warmers and redesigned wind deflector should keep drivers warm and unencumbered by excessive noise.
After it debuts in New York, we’ll see the 2015 BMW M4 convertible in showrooms this summer. We recently learned that the BMW M4 coupe will start at $65,125 including destination, so it’s realistic to presume that the convertible will cost a few thousand dollars more when it goes on sale.