The Acura RDX is Acura s first compact crossover SUV. Originally previewed as the Acura RD-X concept car, the production RDX had its debut at the 2006 New York Auto Show and went on sale on August 11, 2006. The RDX takes over from the MDX as Acura's entry-level crossover SUV, as the MDX continues to grow in size and price. Although the dimensions of the vehicle are similar to that of the Honda CR-V, the RDX uses a unique platform developed to handle the vehicle's advanced all-wheel drive system. A facelifted 2010 model went on sale in August 2009, adopting Acura's power plenum grille seen on its sedan models.