Less than two years after the market introduction of the new Cadillac SRX in North America in the summer of 2009, and General Motors has gone ahead and improved its premium crossover for the 2012 model year with a more powerful six-cylinder engine and additional equipment features.The highlight for the 2012 Cadillac SRX is of course the new 3.6-liter direct-injected V6 engine with 300HP and