http://www.autoblog.it/post/20863/ferrari-california-foto-spia-con-pacchetto-hgte sorry is in italian
On the Owners Configurator site there is an option "HGTS package" but it's not available at the moment.
Unlike the 599, this car could have a really big difference with a HGTE (HGTS?) package. Ferrari should consider bringing out these options concurrently with model introduction instead of years later. Sounds very exciting. Maybe a California for the purist is coming? Lighter, leaner, firmer, sportier?
Its their way of keeping sales up as they develop a new replacement. But I would have to agree with you, that a leaner, lighter Cali (with no stacked tail-pipes) would probably float quite a few customer's boats.