With the Aston Martin DBX's December reveal drawing ever-nearer, the British marque has now revealed some more details of the big SUV as it goes through the 'most comprehensive test regime' of any Aston so far. It will be powered by the same 4.0-litre biturbo V8 petrol as found in machines like the DB11 Volante, only with even more power and torque: 550hp and 700Nm, to be precise. With Aston confirming it will corner as hard as a Vantage and stop even better than a DBS Superleggera, Aston is claiming it will lap the Nordschleife in less than eight minutes flat. Which is seriously quick for a sports car, never mind an SUV. Aston's chief engineer Matt Becker said: "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. The next few months will be extremely important to us, as we continue to hone the powertrain credentials and a dynamic setup that will help make this the most exciting SUV on the market." With a top speed of more than 180mph, the DBX will be fast... and noisy, too, as you can hear on this video.