The GX 460 Premium adds adaptive variable suspension (with rear adjustable height control), additional chrome trim, auto-dimming sideview mirrors, adaptive xenon headlights, upgraded leather upholstery, a heated wood-trimmed steering wheel, heated second-row seats and rear air-conditioning. The interior of the GX 460 is upscale and assembled with precision, though the overall opulence factor isn't quite as high as we've come to expect from other Lexus vehicles. The lengthy features list translates into a somewhat busy-looking control panel, but these controls are easy to use, thanks to intuitive placement. The gauges are easily read, as is the optional navigation system.Because the 2011 Lexus GX 460 carries on as a body-on-frame SUV, it drives more like a truck than car-based crossovers. Still, the GX manages to impress with a refined, smooth ride and respectable handling. Those who take their corners with spirit will notice ample body roll and intervention from the stability control system. The 2011 Lexus GX 460 comes standard with antilock brakes, traction and stability control, hill descent control, hill start assist, front- and rear-seat side airbags, driver and front passenger knee airbags and roll-sensing side curtain airbags spanning all three rows. A collision mitigation system is included with the optional adaptive cruise control, and lane departure and distracted driver alerts are also optional features..