One of the most successful crossover SUV offerings in the history of the genre, the mid-size RX series continues to attract buyers with its distinctive combination of style, luxury, comfort and safety. This line of car-based five-passenger family haulers includes both the volume-leader RX 350 and the RX 400h Hybrid (reviewed separately), and offers V6 power in both front- and all-wheel-drive configurations. Key RX 350 competitors in the prolific mid-size premium SUV/crossover segment include the Acura MDX, BMW X3 and X5, Cadillac SRX, Infiniti FX35 and FX50, Lincoln MKX and Mercedes-Benz ML350.