So many automotive sister/subsidiary brands usually controlled by parent companies in the world of motorsports actually

[theriusDR3]

In reality, subsidiaries and sister automotive brands in the world of motorsports are usually controlled by parent automotive companies, example:
-DS in Formula E controlled by PSA PEUGEOT-CITRÖEN S.A. and PEUGEOT SPORT
-ALPINE in F1 and Formula Regional Europe controlled by RENAULT SPORT and GROUPE RENAULT
-LEXUS in IMSA SportsCar Championship controlled by MOTOR SALES USA, Inc.
-Acura in IMSA SportsCar Championship controlled by American Honda Motor, Co. Inc.
-LEXUS in Japanese Super GT controlled by TOYOTA MOTOR COMPANY Japan and TOYOTA GAZOO RACING Japan
-CHEVROLET and CADILLAC in IMSA Sports Car Championship, CHEVROLET in IndyCar Series, NASCAR, NHRA etc. controlled General Motors USA
-DODGE in NHRA controlled by FIAT Chrysler Automobiles USA

In the past:
-Jaguar Racing in F1 controlled by Ford Motor Europe
-OPEL in DTM controlled by General Motors Europe
-CHEVROLET in WTCC controlled by General Motors Europe
-INFINITI in IRL IndyCar Series and INFINITI Pro Series controlled by NISSAN Motors USA

Any additions?

[NL_Fer]

Almost all car brands have a parent company, even Mercedes AMG.

[theriusDR3]

Almost all car brands have a parent company, even Mercedes AMG.

Technically MERCEDES AMG F1 Team controlled by Daimler AG

[Jolle]

Nothing to do with racing, car companies are normally just part of a larger automotive group. The brand on the car is more often that not just a marketing choice.