Also joining the test is Benoit Treluyer, who has taken a FIA World Endurance Championship title and three Le Mans 24 Hours win in his time as an Audi LMP1 driver, as well as GT and touring car racer Frederic Vervisch.
Vervisch, ninth in the World Touring Car Cup this past season, has had numerous outings in a variety of categories with top Audi customer team WRT over the years.
WRT is joining the DTM grid next year and will be present at the test, which takes place at the Spanish Jerez circuit on December 10-12.
Audi has also named three younger drivers who will sample the RS5 DTM alongside Bakkerud, Treluyer and Vervisch.
The DTM-supporting European F3 series will be represented by race winner Ferdinand Habsburg and rookie Jonathan Aberdein, who scored three podiums in his debut campaign.
Mattia Drudi, who finished runner-up to Lance Stroll in Italian F4 in 2014 and has since found success in Porsche Carrera Cup racing, rounds out the list.
The exact make-up of Audi’s 2019 race line-up in the DTM remains uncertain and the manufacturer is yet to confirm any of its drivers for next year, although Formula E-bound Robin Frijns is unlikely to return.
Regulars Rene Rast, Mike Rockenfeller and Nico Muller were the drivers carrying out testing for its new-spec DTM car in Estoril last month.
Ferdinand Habsburg, Motopark Academy
Photo by: James Gasperotti / LAT Images