Prepare pound cake batter; pour into prepared 3D Cruiser pan. Bake 1 hour 40 minutes or until toothpick inserted in center comes out clean. Cool cake in pan on wire rack for 10-15 minutes; remove from pan and cool completely. Cut cake board to fit cake; wrap with fanci-foil. Arrange cake on prepared cake board.
Spatula ice car windows and hub cap areas smooth with white buttercream icing. Outline windows, doors and car body with tip 5 in light rose icing. Fill in car with tip 16 light rose stars. Outline wheels with tip 12 black icing. Pipe tip 3 dark rose bead flowers on door and hubcaps. Add tip 3 dot yellow flower center. Add tip 12 dark rose bumpers, fenders and running boards. Make tip 12 rose bead flowers on car hood, roof and trunk; add tip 12 yellow dot flower centers. Pipe tip 5 dot headlights and tail lights in yellow icing (flatten and smooth with finger dipped in cornstarch).