Chocolate cake with chocolate fudge filling. The bottom tier is covered with buttercream and fondant and the top tier is covered with buttercream and cookie crumbs.
The jeep is 100% edible, made with rice krispies treats, buttercream, fondant and gumpaste. The flags, grass and rocks are a gumpaste and fondant mix. The Diego logo and headlights are gumpaste and I colored them with food safe markers.
Diego and Baby Jaguar are plastic figurines, but everything else on the cake is edible. A close up of the jeep is below.