An all-new luxury crossover will soon roll out from Audi after our spies were able to take new photographs of the Q8 in prototype form. Now looking a lot like the concept first shown at the 2017 North American International Auto Show (NAIAS), the upcoming Q8 gets a sleeker shape, along with a wider grill.

Compared to the test mule that was seen last July 2016, the new Q8 prototype now has its own unique front fascia. While not yet a final design, it's clear that the Q8 gets the new Singleframe grill design that was first used in the concept car. Also seen are what appear to be a fresh set of headlights and bigger air intakes on the front bumper.

Spied: Audi Q8 prototype spotted with new grill, sleeker profile

The rear is heavily camouflaged but with a keen eye, one can see that Audi stayed true to the original concept design. The tailgate has a rakish design which gives it a coupe-like profile. Meanwhile, the inverted L-shaped taillights resemble the ones used on the Q8 concept.

However, it looks like the Q8 will be slightly shorter in length than the Q7. But again, Audi plans to make the Q8 the flagship model as it will come with all of the latest tech and features from the brand.

Rear quarter of the upcoming Audi Q8

It will supposedly be underpinned by the new MLB-Evo platform (also used in the Bentley Bentayga, Lamborghini Urus and Audi Q7) from Volkswagen. This could mean that the upcoming Q8 could be powered by a 4.0-liter twin-turbo V8 that can deliver more than 600 PS. Quattro all-wheel-drive could also arrive in the new Q8 crossover.

Side profile of the Audi Q8 prototype

Expect the Audi Q8 to arrive in showrooms in 2018.