You might like to change your display name to "Gopu Lilly".
However, in answer to your question, your problem lies in that you've defined a hardcoded display. In real life, you'd normally be setting the display from a backing bean and probably setting the backing bean from the display as well.
Like so:
The default value would be whichever value you'd initialized carBean.currentCar to. I've copied an example that uses the selectItems tag instead of individual selectItem's, but operation is identical.
Here's a good place for JSF tag usage examples:
http://www.exadel.com/tutorial/jsf/jsftags-guide.html
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.