Lexus today announced pricing and availability for its much-anticipated RX 400h hybrid SUV. Due to go on sale April 15 at a base sticker price of $48,535, the RX 400h joins the 2005 Ford Escape Hybrid as the only other hybrid SUV on the market, and the only luxury vehicle built with a gas-electric powertrain. At $48,535, the base RX 400h costs about $4,585 more than its comparably equipped gas-only brother, an all-wheel drive RX 330. In addition to the hybrid system, the RX 400h has a new Vehicle Dynamics Integrated Management stability control system (VDIM) and comes standard with leather interior trim, power tilt/telescoping steering wheel, roof rack with rails, illuminated entry system, a one-touch open/close moonroof, Lexus DVD navigation system with rear backup camera, six-disc CD changer, new 18-inch wheels and HID headlamps with the Adaptive Front lighting System (AFS).