ok guys i've made a new car itz one of my best I think...but enyway take a look and critic me.I didint made the elipses beacose i wod ruin it beacose im badd at elipses so..here is the link
http://i160.exs.cx/img160/6854/ithinkmybest0013vc.jpg

Proportions are still way off. Dont start shading until you get proportions down. Try the box method...

Okay some recomendations ;)
Do some reading up on perspectives ;)
Don't start sading till you are done drawing ;)
After sketch is done do some opys before startin adding ligths and shadows.
It is just if you mess up you have a copy of image to try it again ;)