Compare 2 specification Plugin or Theme

Hello, i need a plug in or a parallax theme that can give me the capability on having a comparisson of two specifications in the same page.

Example: http://www.honda-cars.gr/civic-tourer/compare/
(Note: i know its in greek but the buttons on the right side are the two different cars, clicking on them you can see the comparisson)

Basically i need to be able to have a brand of a car (this will have its own page) and in that page i will have the two versions of that car (same car different specs) and be able to show the two specs next to each other on the same page, with somehow the same effect with the link above.

Im open to any kind of suggestions/solutions on how i can do this!

Thank you in advance