For 2023, along with a full redesign, Lexus changes the hybrid RX's badge to the RX 350h. Now sporting a 2.5-liter four-cylinder engine instead of the outgoing V6, fuel economy increases to an impressive 34 mpg overall in our tests, and the car can propel itself on electric power alone at low speeds. The new hybrid combo produces 246 hp, a significant drop from the previous generation, and refinement is down with added engine noise under acceleration. The ride is comfortable whether on the standard 19-inch or optional 21-inch tires. Handling is sound and secure but not sporty. The rear seat is roomy and fit and finish is impeccable. It takes getting used to the electronic door latches. The infotainment system relies on a touchscreen for nearly every audio, climate, phone, and navigation task, but not everything is intuitive. The top version, badged RX 500h, has a powerful turbo and hybrid combo producing 366 hp. BSW, RCTW, FCW, AEB, ACC, LDW, LKA, and LCA are standard. Beginning in 2024, a plug-in hybrid, the 450h+, with an EPA estimated 37-mile electric range was added.