The 2019 Lexus RX 450hL is available as a 4-door, 7-seat sport utility. Starting at $50,970, the 2019 Lexus RX 450hL Premium is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 29-mpg in the city and 28-mpg on the highway. The top of the line 2019 Lexus RX 450hL Luxury, priced at $54,905, is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 29-mpg in the city and 28-mpg on the highway.