John,
The factory cover has the clear window over the license plate, and mirror pockets. The added bonus to the factory cover is where the exhaust tips are located the factory cover has heat shields so they will not melt the cover. mine has the grey bag with the SRT-10 Viper logo on both the bag and the front of the cover.
Installing the cover = after you put the cover on for the first time, take the front off first and roll it back to the windshueld (leave it on the mirrors) do the same for the back and roll it forward where it is across the windshield. as long as the mirrors are in the pockets it will not move. go to one side and pull the cover off the mirror. walk back around and roll the cover up towards you. I marked the drivers and passengers side with a sharpie on the inside of the cover where the security cable passes through. This way what ever side you roll it towards you know what side to start with. to re-install the cover check the side and put the mirror in the pocket, roll it accross the windshield and put it over the opposite mirror. It will not blow or slide off at this point. pull it down over the front and rear...
Todd