I recommend a car cover from California Car Cover. You may spend a little more, but the quality is A+ They have a wide assortment of covers for any budget.
I just received three custom car covers from this company not too long ago, and they turned out great. You can also specifiy what your car has on it, whether it has a cowlhood, dual side mirrors, spoilers, and so forth for a great custom made cover. Here is the website.
www.calcarcover.com