For 2010, Lexus is doing a mid-cycle refresh on its flagship LS lineup, including the hybrid drive LS600h. The system mainly carries over hardware, but some of the controls are enhanced with the latest updates featured on the new Prius, HS250h and RX400h. Among those are a new ECO mode that applies a filter to throttle inputs and air conditioning control. Small adjustments in the throttle position are ignored, allowing the powertrain to operate at a more constant rate, reducing fuel consumption. Similarly, the air conditioning uses the recirculate mode automatically and allows more variation in temperature.
One of the complaints we had about the LS when we reviewed it last year was the minuscule trunk for a car of its size. Lexus has reconfigured the nickel metal hydride battery pack to reduce the package size, allowing the trunk volume to be increased by about 1.24 cubic feet. The front brakes have also been upgraded with larger rotors and six-piston Brembo calipers. On the outside, the LS gets a new front fascia with a grille similar to the HS250h.