They are generated on my child.ts
I canāt see any car generator logic or something inside your child.ts
I get my cars, I have the output I need. Doesnāt have anything to do with the passing variable from parent to child component.
Thatās what iāve been wondering, but glad that you can proceed with your project now. Happy coding 
Hahaha I have my cars, I donāt have my variable passed. I want to display the cars only if its brand is the same as the brand Iām displaying on itās parentās component. So, in order to do that, I need to pass the brand.key to the child component and *ngIf it.
Nice that you got it working now. 