BMW unveiled the all-new second-generation X4 SUV earlier this year, so it's only a matter of time before the hot M version breaks cover. We've already seen a camouflaged prototype model being put through its paces at the Nurburgring, but thanks to a leaked image posted by Mexican publication AutoCosmos from inside the automaker's Spartanburg plant in South Carolina we've been given an early look at BMW's hardcore compact SUV completely undisguised potentially months before its official reveal.

The leaked image shows the X4 M's entire rear end sporting wider fenders, a new bumper with an integrated diffuser and quad exhaust pipes, and, of course, a signature 'M' badge on the tailgate.

A closer look also reveals M-specific side mirrors and larger alloy wheels with even more M branding. While we don't get a look at the front-end, recent spy photos have already confirmed the 2019 X4 M will feature larger intakes, an M-style kidney grille and a more aggressive bumper. Aesthetically, it's exactly what we've come to expect from BMW's M division.

Other than that, the new X4 M should look identical to the second-gen X4 that it's based on, but expect mechanical improvements such as improved brakes, stiffer suspension and sharper steering to provide a sportier driving experience.

Under the hood, the new X4 M expected to pack the same 3.0-liter, twin-turbo inline-six engine as the M3 and M4, which is said to produce around 450 horsepower and carry over to the new X3 M. 0-62 mph should take around four seconds. BMW hasn't announced a reveal date yet, but since the standard 2019 X4 goes on sale in July we're expecting the M version to break cover before the end of the year.