After reading about the quality issues of the BMW 750 and Mercedes sedans, I bought the Lexus 460. Lexus 460 developed engine trouble after the first 100 miles or so. The car started shaking badly, even at idle. After phoning the dealer, we limped home. Tonight, the dealer picked up the car with a flat-bed truck and took it away.
It is comfortable. Extremely quiet. Voice command looks promising. Comfortable rear seats. Glove box lid feels cheap. Who needs ash trays anymore? Doors close very nicely. Back up camera was almost useless in the rain we had to drive through. Got fogged up badly.
No feel for the road. My friend in the passenger seat could not use the nav system while we were driving. We had to stop. My $300 Garmin works better. The car should have been checked out much better by the dealer. Hated to see a $70,000+ car loaded unto a truck and driven away on its first day.