Edging away from the current RX look, the 2010 RX 350 has a wider stance, with more pronounced front fenders and crisper lines overall. As in the previous generation, the grille is placed lower than the headlights, so the Lexus family resemblance carries on, but the headlights are more sharply defined and the roofline is flatter. In essence, the rounded egg-shaped body has been redefined at the corners to retain fluid RX cues in an updated format.In the process, the new RX got slipperier, with a coefficient of drag of 0.33, down from 0.35.
The RX has a new keyless entry system that has a better-integrated sensor on the front doors. It looks sleeker, and the door handles themselves have been redesigned for a more comfortable grip. Fog lamps are integrated into the front bumper, and the outside mirrors are heated.
The RX 450h is distinguished by a different, more finely slotted grille and front bumper treatment, and by energy-saving LED headlights that are exclusive to the hybrid. Both the RX 350 and RX 450h have LED brake lights and turn signals, but the hybrid has auto-dimming outside mirrors. The 450h also has blue emblems and logos, and is available in an exclusive White Pearl color.