The 1999 Acura RL is available as a 4-door, 5-seat sedan. Starting at $41,900, the 1999 Acura RL Base 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 1999AcuraRLBase , priced at $ 43,900 , is powered by a 3.5L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated