I made this for my son's 2nd birthday. This is my 2nd fondant cake and my first attempt at a sculpted cake. I used three 9x13 cakes and one 9x9, stacked them with buttercream and then took the knife to it. The wheels are rice cereal treat covered with black fondant. There were a lot more details I wanted to add but I was taking too long and my husband made me stop (I'm eight months pregnant). lol