The RX has avant-garde exterior styling and lots of advanced safety features. Its 3.5-liter V6 is linked to an eight-speed automatic, delivering ample power and a commendable 22 mpg overall. The fuel-thrifty 450h hybrid gets an excellent 29 mpg overall. Inside, the RX is very quiet and well-finished. Ride comfort is plush, whether you get the base car on 18-inch tires or more uplevel versions with 20-inch tires. Handling, however, is ponderous and devoid of any sporty feel but ultimately secure. The mouselike controller and distracting interface require a steep learning curve. Rear passengers get lots of leg and knee room. The Lexus Safety System+, which includes automatic emergency braking and lane-departure warning, is standard. A three-row, seven passenger RX L model is added for 2018.