Anyway, if it were my call to do the engine lineup at launch, I'd do 1 or 2 V6s and 2ish V8s. For the V6 options, it would be 1 or 2 of the following: the 3.5 liter pushrod for its fuel economy and low price, the 3.6 high feature as it is emerging as the new standard V6 for GM with good power and decent economy, or the 3.6 liter DI for its improved power and economy. The DI would be too expensive to have as the only V6, so I imagine they might have either the 3.5 or 3.6, or both, or one of those and the DI as an upgrade. For V8 models, I would make an entry level V8 with the L79 out of the G8 as it has all the fuel saving features and apparently doesn't cost much as they managed to keep the G8 pretty affordable given its features and size. Then for SS and Z28 models I'd use the LS3, uptuned slightly for whichever level is higher, along with better suspension and the other upgrades that would go along with that.
This is just my wishlist, but it would seem to be logical speculation at what GM
might do.
