It's been a long time coming, but Aston Martin's first-ever luxury crossover is ready to make its official debut this coming December. After making its presence known back in November last year, as well showing off how it can do in the snow, Aston Martin has announced that they are now in the final stages of testing.

According to the Gaydon-based luxury marque, they have been conducting durability and performance tests at the Nurburgring as of late. In addition, they were also busy testing the DBX's cornering ability. In fact, the new crossover's cornering speeds are on par with the Vantage. Meanwhile, claimed braking figures of the DBX are greater than the DBS Superleggera.

With high-speed agility and a powerful set of brakes, Aston Martin also mentioned that it was able to regularly achieve sub 8-minute runs around Green Hell during testing.

Aston Martin DBX SUV is almost ready for December debut image

But what exactly powers the all-new DBX? After plenty of rumors and speculations, Aston Martin has confirmed that it has a 4.0-liter twin-turbo V8 derived from the Vantage and DB11. However, unlike the V8 found in the two sports cars (which make 510 PS and 685 Nm), the one on the DBX generates a whopping 550 PS along with 770 Nm of torque. Its exact 0 – 100 km/h sprint has yet to be determined although Aston Martin did say that the DBX's top speed is over 290 km/h.

Then there's its deep and thunderous roar which can be heard in the video above. Honed and crafted by a dedicated acoustic team, the exhaust note of the DBX was created with a focus on making a 'broad, and solid sound that reflects a deep bass with increasing mid-tones'.

Aston Martin DBX SUV is almost ready for December debut image

“We have concentrated our work to ensure that the calibration and tune of this 4.0-litre twin-turbo V8 delivers both the everyday usability and refinement expected by SUV owners. However, we have also focused heavily on matching that with the engaging driving dynamics that are commanded by our brand and inherent in every Aston Martin and early indications of the car’s overall performance have been incredibly promising,” said Matt Becker, Aston Martin Chief Engineer.

Excited to see it soon? Production of the all-new Aston Martin DBX has already started back in June 2019. Meanwhile, the official reveal of the DBX will take place in December.