has any one ever made a cars cake, my grandson is looking for a cars cake for his 4th birthday in a couple of mon. and i need help.cuz im not sure what to do. any advice?

Do you mean something like this?:

http://cakecentral.com/cake-photo_1570475.html

Do a search on this site and you'll probably come up with a lot more. HTH!

thats beautiful jgmb was that hard to make

Oh, that's not mine!!!!! I'm not nearly that talented -- I just found it in the gallery. It tells underneath the photo who made it. You could probably pm them and ask them if it was hard.

I made this one http://cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1337050 and this one http://cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1337053 for my son's two parties last year. The first one is the easiest one and it was very easy. Just get the little mini cars to use on it.

Here's a great one I've found, from Annie's art book, if it doesn't show up go under "annie's art book, then cake decorating/tutorials, I found it under "older posts" but you might be able to search her site for lightning Mcqueen. http://cakes.anniesartbook.com/2008/05/suffering-of-my-lightning-mcqueen-cake.html

Here's mine... yes it was tough... I hand molded all of the buildings out of gumpaste and hand painted the backdrop, I was very proud of it though! http://cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1579457

I forgot. If you want a tutorial for the shape of the 3D Lightning cake, check out this that I made up when I did it http://cakecentral.com/cake-decorating-ftopict-625498-lightning.html. It was my first carved fondant cake and my first time using ganache so the finish wasn't great (I shudder when I see how runny my ganache still was) but it is a good start for working out the shape.