no, i lost hope when i came to the realization that all of their vehicles are mediocre at best. even their top vehicles are nothing more than 'average' vs their competition. i mean, both the aveo and cobalt are crap, the malibu is middle of the pack, the impala is crap, and both the new camaro and the corvette have a reputation for their subpar interiors. the lacrosse and lucerne are mediocre, and the enclave is crap. the STS is still a 2004 model that was mediocre when it first came out, the DTS is junk, the SRX is mediocre, the escalade has always been mediocre(as if rappers cared about interior quality).
GMs great cars are great cars - for GM. vs the competition how ever, they are mediocre at best(cadillac still has a ways to go to match BMW, audi, and MB, even with the CTS). who knows, maybe the cruze will be a class leader for once, but i'm certainly not getting my hopes up.
good to know that there is still some working going on with HCCI, haven't look into it in a while. i think that OEMs were just being lazy with DI too, considering how long diesels have used it.