Prestashop custom module

Hello this is my webpage made in prestashop. www.vrcmotorsport.com
This is what I want:
below the slider you can found a car thumbail list. I want to make the next effect,
http://www.porsche.com/spain/
(the cars thumbail effect) when you click or roll over the cars. To give the chance to the customers to pick up from 2 categories inside the opened box. For example, if you click on "bmw serie 3/M3" I want a new small window (as the porche one) where I can choose from 2 images or 2 text that link to the proper categories page, the serie 3 category page or the M3 category page.

Thanks