I thought that the Buick LaCrosse was using the BAS system in the 2012 models (as of Aug., 2011).  At any rate, I'd surely like to see a photograph of the installation, the belts, and battery(ies).  Since this E boost system operates on 36 volts, some discussion would be helpful, since all other components of the Buick electrical system remain on the conventional 12 volt system.