Van Gisbergen will join Zilisch in the Xfinity Series, driving the #9 Chevrolet Camaro while the young American continues in the #88 car.

Red Bull and WeatherTech have taken co-naming rights for the cars, with van Gisbergen’s car featuring WeatherTech prominently on the bonnet while Zilisch’s has Red Bull.

The announcement comes on the back of Zilisch winning his first oval race at Pocono Raceway.

Van Gisbergen returns to Chicago as a winner there in the Cup Series and the Xfinity Series and remains the only driver to have won at the street circuit in both categories.

Chicago will mark van Gisbergen’s first Xfinity Series start of the year after his plans to race at Mexico City were scuppered.

In that instance, Trackhouse Racing teammate Daniel Suarez was given the nod to race the #9 and won in a back-up car after crashing earlier in the weekend.

Van Gisbergen and Zilisch will go into the weekend as bona fide favourites in the Xfinity Series.

The NASCAR Xfinity Series Chicago Street Race takes place on Sunday, July 6 (AEST) before the Cup Series on Monday, July 7 (AEST).

Australia’s WIll Brown ill be part of the Cup Series field at Chicago in the #13 Kaulig Racing Chevrolet Camaro.