I juste received mine today and it fits perfect. It's the OEM shelby cover, just the same as pictured above. I bougth it on ebay for 308$ + shipping, much cheaper than what your dealer is asking for, and it's the same cover.
2009 Volkswagen Passat Wagon Confortline 6 speed (wife)
2010 Volkswagen Golf TDI Highline 6 speed
2011 Audi S4 premium Bang & Nav 6 speed
2011 Ford Mustang Shelby GT500 convertible 6 speed