DETROIT — The 2012 Cadillac SRX will start at $36,060, including an $875 destination charge, when it arrives in showrooms in August, reflecting a $570 price increase over the 2011 model with a smaller engine. The 2012 Cadillac SRX gets a 308-horsepower 3.6-liter direct-injection V6, a significant upgrade over the 265-hp 3.0-liter V6 in the [...]