referencing multiple objects from a Object.. How to set up reference in the beans.xml file

Hi All,
Newbie here. Spending my first hour on the spring framework.
I was trying to add some references to some dependent classes to see how the framework works.
In my hello world object i would like to create a refernce to a car object and a engine object and a wheel object etc.. car engine and wheel objects are all contained in the hello world object.
Please feel to ask any information i may have left out.
appreciate any inputs.
Ram

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<bean id="helloWorld" class="com.tutorialspoint.HelloWorld">
<property name="message" value="Hi there!"/>

<bean id="helloWorld" class="com.tutorialspoint.HelloWorld">
<property name="message" ref=”CarObj”/>

<bean id="CarObj" class="com.tutorialspoint.Car">
<ref id="wheel" class="com.tutorialspoint.Wheel">

</bean>

</beans>

first. because you put beans.xml makes me think you are not using up to date materials. It has been years and years since people used that file name.

2) a bean tag can have as many constructor-arg and property tags as needed between the opening and closing of the bean tag

Example

Mark