Once the cake is baked and cooled,For the roof of the car, cut the front "windshield" part on a slight angle. Cut the top part of the roof also in an angle and the sides tapering to the back. Carve if necessary.
Next, crumb coat the carved cake with buttercream. Place in the refrigerator to chill.
Cover the chilled cake with red fondant and I used a sharp knife to cut off the excess fondant.
smooth it using hands and the fondant smoother or knife, whatever works for you.
For the windows are made using black gel paste color.white fondant.
For the signs on the side of the car cake, mix some yellow gel color mixed and cut the "lightning". Cut out the numbers and past that as well. I used oreo's for the weel.
And this is left out cakes. i made this one for my 2 and half year niece. otherwise she would want to cut my son's cake. hehe