I using 3D max. Like Traveler said, it's not something you learn over night. However to still make a nice model fast you put a picture of that object at the background. This way you can just follow the lines/curves of that object with your geometry object.

Like the URL Traveler gave you.

Or this:
http://www.3dtotal.com/team/Tutorial...n/nissan_3.asp
You can also try that with box-modeling.