Race Track Birthday Cake I Want To Bake A "cars" Themed Birthday Cake For My Son.i Think I Can Buy A "cars" Shaped Car To Put On The Ca?

I want to bake a "cars" themed birthday cake for my son.i think i can buy a "cars" shaped car to put on the ca? - race track birthday cake

ke him, and he can with him after this game, but I need to know how the cake itself looks like a race track, so can someone please help with a recipe? or decorating ideas, how? Thank you very much