My intention was for a smaller cake, well, it ended up being roughly 30". The car is made from a loaf pan and is a creme bulee butter cake covered in black satin ice fondant (very easy to work with). The fins are fondant and RI. The tires are RKT covered in Wilton's fondant and the accents are fondant. The stands are a white cake with dum dum's for people. The Christmas tree DH made for me and is covered in chocolate clay (first time using, LOVE IT!) with melted Jolly Ranchers set in fondant. Hubby bought 7 bags of the candy looking for the yellow ones:) I stressed for a long time over this cake, but so far I feel pretty good about the way it turned out. This was not my original plan, but because it was sooooo big I had to change things up. The little boy was speechless when I dropped it off. That's a good thing I think?