Having just launched the much-anticipated McLaren Speedtail hypercar, McLaren has posted a teaser image previewing a new special edition 570GT.

The shadowy image showing the rear of the car doesn't give us much to go on, but it's apparently part of a collaboration between McLaren and an "iconic British brand."

"We're excited to reveal our collaboration with an iconic British brand. A new dimension of style, design and innovation is coming soon…#collaboration," the automaker wrote on social media. That doesn't give us much to go on, so whichever brand the automaker has teamed up with is a total mystery.

However, look closely and you can see a male model lurking in the foreground. This suggests McLaren could be collaborating with a prestigious British fashion label such as Burberry or Alexander McQueen for the special edition model.

In which case, we can probably expect to see some unique flourishes such as fitted luggage designed specifically for the 570GT and a bespoke interior. McLaren has also partnered with watchmakers in the past. Like every other McLaren 570GT, expect the special edition model to use the same twin-turbo 3.8-liter V8 that produces 562 horsepower. Can you guess which mystery British brand McLaren is collaborating with for this special edition 570GT?