[Cuda340]

I found this rumor on another website:

For the 2008s: 6.1 or 3.5 V6, both auto trans only, and only three options available: nav, HD headlights, and stripes. Standard equip levels will be high.

For the 2009s: (start production just a few months later), there will also be a 5.7 option, more trim etc options like the LXs, and available manual transmission with the 6.1.