The Acura MDX (Honda MDX in Japan and Australia) is a mid-size luxury crossover SUV produced by the Japanese automaker Acura since the 2001 model year. The MDX is the first crossover SUV to have third-row seating. The Alphanumeric moniker stands for "Multi-Dimensional luXury". It is built by Honda of Canada Manufacturing Ltd. in Alliston, Ontario, Canada. It was introduced in late 2000 as a 2001 model, replacing the slow-selling US-only SLX, based on the Isuzu Trooper. In Japan, it filled a gap when the Honda Horizon (also based on the Trooper) was discontinued in 1999. In 2003, the MDX went on sale in Japan.
