The 2004 Acura RL is available as a 4-door, 5-seat sedan. Starting at $43,255, the 2004 Acura RL (Alaska & Hawaii is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 24-mpg on the highway. The top of the line 2004 Acura RL w/Nav System (48 States, priced at $45,600, is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 24-mpg on the highway.