usualy when one design a webpage, they forget to set the display resolution in the html and use the default display with which the designer is designing the page.
So, when the webmaster creates the page in 1024x840 resolution and she forget (dont care) to set the display to auto-adjust with the user's screen resolution, the page will display awesome in 1024x840 screen but display as oversized in lower resolution and too-small in higher resolution.
You screen is 19".
At work, i use 21" sony trinitron, display is 2048x1680, razor sharp. But some website can not handle this and display as tiny minis. Either you reduce the resolution on your 19" when viewing nissan website, or switch to smaller monitor
I had this problem too until I found out the problem was my IE textsize setting was too low. It would be good for other sites but for the Nissan site, it was too small. Maybe you should fiddle with that under the View Menu