How to access resource from resource?

Action::make('view_promo')
  ->url(fn ($record) => PromoResource::getUrl('view', ['record' => $record->id])),

class Car extends Model implements HasMedia
{
    use HasFactory;
    use InteractsWithMedia;

    /**
     * @var string
     */
    protected $table = 'cars';

    public function promos(): HasMany
    {
        return $this->hasMany(Promo::class, 'car_id');
    }

    ...
}

class Original extends Model implements HasMedia
{
    use HasFactory;
    use InteractsWithMedia;

    /**
     * @var string
     */
    protected $table = 'photos_car_original';

    public function car(): BelongsTo
    {
        return $this->belongsTo(Car::class, 'car_id');
    }
}