Since the original announcement, the lunar quattro has shed eight kilograms in weight, and added Audi e-tron power to its repertoire.
Using four on-board cameras, the Audi lunar quattro will examine objects on the moon, while also taking three-dimensional and 360-degree images.
The Google Lunar XPRIZE competition is worth more than US$30 million ($40.1 million), and is a space travel competition aimed at engineers and entrepreneurs around the world.
In order to win the contest, a private team must get a rover to the moon, drive it at least 500m and send high-resolution images back to earth.
From an original field of nearly 30 entrants, Audi and the Part-Time Scientists are one of five leading teams in the race.