The Acura TSX is an entry-level luxury car manufactured by Acura. Introduced in April 2003 as a 2004 model, it was sold only in the United States and Canada, but since the 2009 model year it has also been available in Mexico. It is also sold in Guam and Puerto Rico. It is sold in North America under the Acura luxury marque, where it filled the gap as Acura's 4-door, entry-level sedan when the Integra sedan was discontinued in 2001 (1996 in Canada since the EL was the Integra sedan's replacement there). The TSX would also eventually replace the Acura RSX in the US (which in turn succeeded the Acura Integra coupe). From 2008 until 2013, the TSX was the smallest vehicle in the Acura model line, other than the Civic-based CSX (and the preceding 1.6/1.7EL) sold only in Canada. In 2013, the smaller ILX was introduced in both the United States and Canada, based upon the Civic platform (replacing the CSX in Canada). All TSXs are built in Sayama, Saitama, Japan. The TSX is badge engineered from the CL-series Honda Accord sold in Europe and Japan. However, the TSX had a restyled interior and different suspension tuning when it was introduced. The interior is now standardized for all three markets.