An Italian site perusing Ferrari's online media outlet found the screen you see above. At the end of the list of La gamma attuale -- the current range -- is a box captioned "600 GTB" accompanied by a "Coming soon" image.

The picture next to the "600 GTB" is a placemarker of Luca di Montezemolo above the caption 458 Italia which makes it look like the sitemasters were fiddling with the site's layout. Ferrari has told a few media outlets that it was a "web developer's mistake... and a "complete non-story." Moving on then...

[Source: Quattroroute (translated)]