My Inspiration
http://www.rsportscars.com/foto/05/gtoramair604_01.jpg

My Rendering
http://www.photo-chop.com/gallery/albums/userpics/10004/normal_davesgto.jpg

Drawing looks really good,
the back wheel is slightly off,
and the cars just a tad thin,
but otherwise great!

You need to use a bit more, hmm, what's it called! Ahh! umm...Aha! Value in your shading.

Pretty good perspectively, just the shading that needs a little work. It might help if you converted the pic to black and white, and then try to shade the value that you see.

Good perspective, the shading could use more value as they said above, good sketch though.

what can you do when you've been awake for 2 days straight? hah. it was 3 am when i sketched that up, i didn't Give a rats ass about shading :D.....my next car is a viper i think

Aha! I did one at 1:17 and did shading. SO yeah... Just wanted to point that out, I DID give a rats ass about shading:) And it turned out really bad anyway.:D