Following the untimely news that the development of the upcoming Cadillac SRX plug-in hybrid was brought to a halt entirely, questions began rising almost immediately as to why the project was canned.

Well, now we know a little more about why the Cadillac SRX Plug-In Hybrid project was killed by its development team at General Motors. The culprit, according to GMInsideNews, was the lithium-ion ...