The Acura MDX, or Honda MDX as known in Japan and Australia (only the first generation was imported), is a mid-size luxury crossover SUV produced by the Japanese automaker Acura since the 2001 model year. The MDX was the first crossover SUV to have third-row seating. It is related to the Honda Odyssey and Honda Pilot. The alphanumeric moniker stands for “Multi-Dimensional luxury”. It is built by Honda of Canada Manufacturing Ltd. in Alliston, Ontario, Canada.