Weve seen numerous spy shots of the Porsche Panamera, along with computer renderings from tuners and a teaser from Porsche itself. Were guesstimating an auto show reveal by the Geneva show in early 2009 since its expected to arrive in markets later that year. A hybrid Panamera will arrive shortly after launch. A convertible and diesel version are also being considered. recently spotted the Panamera and says its not unusual to see cars being tested on her steep street.You can also check out the Porsche Panamera minisite here.Click through for more photos.Porsche Panamera seen in San Francisco:?????Source: Flickr (via )Tags: Panamera, , Spy Shots