The 2003 Chevrolet Malibu is available as a 4-door, 5-seat sedan. Starting at $18,075, the 2003 Chevrolet Malibu Base is powered by a 3.1L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 29-mpg on the highway. The top of the line 2003ChevroletMalibuLS , priced at $ 20,575 , is powered by a 3.1L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 29-mpg on the highway.