Special edition X6 M spied with modifications that hint at a power boost on the 4.4 liter, twin-turbo V8.

Here are some of the first spy shots available of an upcoming special edition BMW X6 M.

This prototype spied testing on the Nürburgring is sporting a massive air scoop on the bonnet as well as air extractor outlets which BMW is trying to hide with the camo. The side skirts also look a little bolder than on the standard X6 M model.

We expect this special edition X6 M to feature an uprated 4.4 liter, twin-turbo V8 to around 600 PS (441 kW / 592 bhp) over the series' 555 PS (408 kW / 547 bhp).

Gallery: Hotter BMW X6 M special edition spied for first time