The LS 430 comes with a 278-horsepower 4.3-liter aluminum V8 and a six-speed automatic transmission. Passive safety features include seat-mounted side-impact airbags (for torso protection), rear side curtain airbags and knee airbags, in addition to the federally mandated dual frontal airbags. Amenities include a Mark Levinson? audio system, the Lexus navigation system with rear back-up camera and Bluetooth? front climate control seats, rear seat heaters, and the Intuitive Parking Assist.For 2006, the Lexus LS 430 changes were minor.