Mostly better than LS430. Most important, much stiffer spring rates allow still supple ride, but much better roll resistance, and much less lean in turns. Bridgestone Turanzas give vastly superior dry and wet handling. Engine much more powerful and responsive. Interior ergonomics disappointing. Placement of gear shifter much too close to dash, requiring awkward access to buttons for AM/Sat, FM, and CD. Why does the car over-ride selected air-recirculation when in reverse, allowing exhaust gas to enter cabin?
Ride very smooth. Engine very responsive. Holds road much better than LS430; can take turns 10-20 mph faster. Wet weather traction and resistance to hydroplaning vastly better.
Can't delete satellite bands; need to toggle 3 extra times to get AM, which shares the same button. Allow stereo to remain on after turning off engine; currently requires pressing "On/Off" button twice and waiting several seconds to get sound. Gear shifter too close to dash; hard to push buttons.
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