The 2006 Lexus RX 400h belongs to the first generation of the RX line. As the world's first luxury hybrid SUV, it houses a 3.3L V6 engine combined with an electric motor, delivering a total output of 268 horsepower through a continuously variable automatic transmission (CVT). Available in both front and all-wheel-drive configurations, this SUV vehemently claimed its position in a predominantly gas-powered segment. Key safety features include enhanced Vehicle Stability Control (VSC), brake assist, and seven airbags as standard. With a touchscreen interface and voice-activated DVD Navigation system, the RX 400h stood on stronger tech-grounds. Despite its 15 years, the 2006 Lexus RX 400h remains a symbol of exceptional fuel-efficiency and lower emissions in its class.