I purchased a 2010 RX350 in Dec 09. Car built same month. I noticed that in making a change with the engine manifold etc the car warms up faster than earlier model. But, driving into a driveway like into a gas station the car rocks like a canoe on the ocean. The improved suspension is a joke. I have 19 inch wheels; I dont know what for as I dont have the sports edition. The car does not have the quiet smooth ride as mentioned in reviews. All in all I am disappointed in the car. You slam the drivers door and it sounds like a car full of tin cans. I would expect this from an American car of years ago but not a new Lexus. The car sounds cheap, rides cheap, and is just an overpriced mess.
I really don't have any favorite features.
First of all at night the navi and the instruments panel reflects both on the front windshield and the side driver's window. the ride is horrible, and I mean horrible!