The Cadillac SRX is a mid-size luxury SUV and compact luxury crossover SUV (CUV) manufactured and marketed by Cadillac over two generations: the first generation as a five-door, three-row, seven-passenger CUV (2003–2009), and the second generation as a five-door, two-row, five-passenger CUV (2010–2016) – the latter becoming Cadillac's best selling model in the United States. Engine options included the 255 hp (190 kW) High-Feature V6 and the 4.6 L 320 hp (239 kW) Northstar V8. It was based on the GM Sigma platform and came with a five or six-speed automatic transmission; rear-wheel drive and four-wheel drive and MagneRide were available. As a Sigma platform vehicle, the first generation SRX had a longitudinal mounted front engine, longitudinal transmission mounted behind the engine, and a rear drive differential. The AWD option was implemented with a transfer case mounted to the rear of the transmission, with a propeller shaft forward to a front differential to power the front wheels. (Source: Wikipedia.org, CC BY-SA)