The Acura RDX is all about sporty driving, which is why it uses a turbocharged four-cylinder engine to make its hearty 240 horsepower. This is the first turbocharged engine that Acura has produced. It's 2.3 liters, and comes out of the Acura TSX, with many changes making a completely different powerband.Proving its commitment to sport, the RDX uses a sequential five-speed automatic transmission with paddle shifters, a firm independent suspension made for cornering, and Acura's patented SH-AWD (Super Handling All Wheel Drive) system, which delivers a higher proportion of power to the outside rear wheel under hard cornering, thus keeping the car in line.Click here to read more