Earlier, our spy photographer spotted the elusive M4 Convertible wandering public roads wearing the usual swirly-wrap camouflage, but now, the M4 has been captured burning up the Nürburgring during high-performance testing. Wearing only minimal camo, the M4 shows off its details.

Though BMW hasn’t officially pulled the covers off the drop-top and details are pretty scarce, it’s easy to imagine the majority of components will be shared with its other M4 counterpart.

The drop-top will likely be powered by BMW’s all-new, 3.0-liter, twin-turbocharged inline six-cylinder that kicks out 425 horsepower and 406 pound-feet of torque. The six-speed manual and optional seven-speed double clutch gearbox will surely be included as well. We suspect the underpinnings and suspension bits will remain the same, though it’s still unknown how much weight the mechanical hard top will add and if BMW has to reinforce the car’s structure. Even if carbon fiber is extensively used, the convertible’s weight will surely be more than the coupe.

As the pictures tell, the M4 Convertible’s bodywork closely resembles the coupe’s. The twin lower air intakes with their numerous angles, swoops, and cuts transition over. The hood appears to have the same bow wake spreading past the BMW Roundel with the power dome rising in the center. Sharply angled rocker panels give a more aggressive appearance to the car’s side profile. Out back, the rear fascia sports all the same features from the coupe, including the quad exhausts.

Click past the jump for the complete run down on the M4 Convertible

Spy Shots

Spy Shots: BMW M4 Convertible Testing on the Nurburgring Exterior Spyshots
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Spy Shots: BMW M4 Convertible Testing on the Nurburgring Exterior Spyshots
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Spy Shots: BMW M4 Convertible Testing on the Nurburgring Exterior Spyshots
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Continuing with the exterior, the hard top seems a familiar sight, perfectly resembling that of the standard 4 Series Convertible. The relatively low beltline and high arching roof give occupants a large greenhouse to enjoy while the top is affixed. Even the rear side window is surprisingly large. The thin B-pillars arching from above the rear tires seem free of blind spots.

Just aft of the front wheel is an area of interest covered in the swirly-wrap camo. While it’s hard to see from the side profile shot, a close look at the picture showing rear three-quarter view will reveal the double vent side grille shared with the M4 Coupe. The strong accent line that travels rearward from the vent also remains the same as the coupe.

Though our photographer couldn’t grab a shot of the interior, we imagine it will stay consistent with the coupe’s. We also expect the same general options list to carry over, making the car quite customizable.

Keep posted to TopSpeed for any breaking news on the M4 Convertible.

2014 BMW M4 Coupe

2015 BMW M4 Coupe High Resolution Exterior
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2015 BMW M4 Coupe High Resolution Exterior
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2015 BMW M4 Coupe Exterior AutoShow
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