Well cars now days last up to 8 years so protecting the paint to last as long is a wise choice.
New cars should be soft clayed (claying removes contamination from the paint such as brake dust and much more. Claying will make your paint last longer
How-To Clean Your Paint with Clay
http://www.bettercarcare.com/articles.php?articleId=14
Paint should be polished /w cleaner every year to keep it looking good
two coats of sealer or wax. Sealers last longer then waxes but wax looks better.
washing your paint rinse real good to remove the grit from your paint first, use a good car soap that acts as a lubricant and a good mitt
remove bird dropping asap because bird droppings will ech paint's clear coat
Here is a few but there is a lot more to learn