Took a look at the HHR site.
Chevrolet | 2008 HHR LS, Panel LS, LT, LTZ, Panel LT, Chevy HHR
Despite a post or two here... the engine appears to be the exact engine and tuning as the RL/GXP.
260hp 2.0l ecotech turbo.... 29mpg Hwy.
What also was surprised me was the price... 22k?! That seems fairly reasonable. hmmm... any rebates....