Trevor's cars cake

I was approached by Trevor's mom to make this cake for Trevor (brother of Natalie whom I had made her birthday cake in April 08, Hawaiian theme). I appreciate her understanding that I'll be busy this weekend and not able to mould figurines, hence she provided me with Trevor's toy cars. Thanks very much.

As the 'green car' (I do not know the name, sorry) is Trevor's favourite, so he's the champion and is on stage to get the trophy!