I made this for Kaitlins 5th birthday. Her only request was it had to be a cars cake. So, I started to get ideas form CC and all over the web. This is what I came up with. The bottom layer is 12 inces the tio 8 inches. Nest time I might try it on a smaller scale. (10 inch and 6 inch) I am not confident(or maybe just lazy) to do edible cars so I bout the match box sixed ones(close to it) Also, shop ahead for Tow mater ... he is sooo hard to find in the rusty version...not even the disney store had him in stock. Sorry I DONT know how too split if you want other pics email me [email protected]