My First Arduino Car

Hi all,
I 'd like to thank the forum for the support on building by first "Arduino Car".
I have attached an image. It is still in a very beta stage.
I have read all the tips on this forum, and I was able to assemble this very very basic stuff. I have still problem with the wheels, but the car is able to stop if an obstacle is put on the front.
I must still program the head movements and so on, but it is a good sgart for a newbie like me.
For a complete article take a look to my blog
http://gioorgi.com/2011/arduino-car/