Destination URL and QS

Is the destination URL for a specific keyword the only thing that influences the landing page side of the quality score algorithm? I know QS is impacted by a number of factors, but this is just regarding the landing page SEO side.

I basically want to know if I can have keywords set up like this:


Keyword --- Dest URL
===================
Toyota Corolla - default
Toyota Corolla S-Class - (s-class geared landing page)
Toyota Corolla 4 door - (4 door geared landing page)

Ad - Toyota Corolla Information
Desc - Toyota Corolla blah blah blah blah


Thanks for the input!

All the ads title, url, links, landing page, keywords are affect to QS. This will help reduce cpc and display position !