The photo was taken by user Beckervdo and posted on the forums of AutoPareri.
Although the car was only photographed from behind, and there's black tape disguising the tailgate's portion of the tail-lights, it's clear the production Q8 will be eerily similar to the concept car.
Above: Audi Q8 Sport concept. Top: Audi Q8 pre-production prototype.
Changes from the concept include altered tail-light graphics, proper door handles, and larger wing mirrors. The concept's frameless windows and sporty silhouette remain.
The Q8 was last spotted by our spy photography agency in May. Those photos taken at and around the Nurburgring Nordschleife revealed the new SUV's interior for the first time.
Like the recently unveiled fourth-generation A8, the Q8 will feature two high-resolution touchscreens, capacitive buttons, and a greatly reduced quantity of physical buttons.
With the Q8 already pounding the pavement practically without disguise, it's likely the SUV will debut by the Frankfurt motor show in September.