plz help

[rapaz]

hello, i a complete noob in 3ds max and i'm trying to do this tutorial: http://www.3dm3.com/tutorials/vaz/index.php
and i'm stuck, i already set up the environment and not i want to start building the body, but i dont know how to create this kind of form:


how can i modify the plane into this oval, after i make this piece i have to keep copying it?

thanks in advance