class Service {
    vehicles = this.http(...).pipe(shareReplay(...))
    colors = this.http(...).pipe(shareReplay(...))

    state = combineLatest(..., vehicles, colors).pipe(
        map(...),
        shareReplay(...)
    )

    getState() .... {
        return this.state;
    }

    getVehiles() ... {
        return this.vehicles;
    }

    getColors() ... {
        return this.colors;
    }
}

<ng-container *ngFor="let message of messages">
   <div (click)="onClick()"></div>
</ng-container>


class Component {
  name = 'name of the component';
  messages = [{ name: 'messageA' }, { name: 'messageB' }];

  someMethod() {
      console.log(this.name) // name of the component
       // this === Component
  }

  onClick() {
     console.log(this.name) // messageA
     // this == { name: 'messageA' }
  }
  
}