Help Making a Large Race Car Cake?I am having a hot wheels party for my son and my mother in law is going to make the cake but I want to give her a little help. I have told her that I want a figure 8 black race car track on the cake and I will put some cars on the track but I have no clue how she is going to make this. Has anyone ever done it before? Can anybody give me some tips to give her? She has never made a race car cake like this before and I am needing it for 40-45 people. Any ideas would be appreciated!