The 2005 Acura RL is available as a 4-door, 5-seat sedan. Starting at $49,100, the 2005 Acura RL (48-State 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 26-mpg on the highway. The top of the line 2005AcuraRL(Alaska , priced at $ 48,365 , 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 26-mpg on the highway.