The E46 automobile platform is the fourth generation of BMW's highly successful 3 Series entry-level luxury car / compact executive car. It was introduced in 1998 and replaced the E36 sedans the same year. The touring and coupé models appeared in 2000, and the M3 later in 2001. The E46 compact, a 3-door compact hatchback, was revealed in 2001. Despite being introduced last, the E46 compact was the first to be replaced when 1 Series was launched in September 2004.