You need to change the feel from being static, especially with cars and planes as the theme.
Create a grid of photos, using Hover 1 Link, and add text and icons to the pop-up on the MouseOver layer. You could have great fun with the icons, especially given the graphics capabilities that come with Xara Desktop applications.

I, too, would regroup the buttons into collections.

You need a theme so either put more detail into the page pop-up layers or split up the material over a number of pages.

Acorn