Had dealer add the 18" wheels with Dunlop run flat tires that makes the ride a little more stiff but far less sway that 17" stock. Excellent quiet ride with good visibility. First Lexus after extended trial and consideration of BMW 530, Infiniti M45, Audi A6 3.0 and Jaguar S V8. Best combination of the "good" things from the others such as AWD, acceptable power but not at loss of MPG or paying exorbitant price. Avoids the "bad" traits like goofy BMW iDrive, Infiniti noise, Audi initial acceleration hesitation and Jag smallish interior. Almost looking forward to Minnesota winters.
Keyless entry, ventilated seats, extremely quiet interior, 27+ MPG in my daily drive, AWD
Larger trunk opening, larger trunk space, fold down rear seats, 50 more horsepower in V6. Tire pressure sensors developed fault in first 500 miles.