Car Cake for a joint party

I made this cake the first week of April when all of the Tree clan got together in Utah.  I made it at April and Josh's house....someone had turned up the heat to 90 degrees and we were all wondering why it was so hot in the house....the cake was a little melty by the end of it all.  It was a joint party for Ammon, Aiden and someone else....help me out here someone!! Was it Chloe??? Maybe??  This cake ended up in the church cultural hall where we all gathered for a dinner and cake...there are lots of Tree's!