2006 Buick Lucerne CXL V8 4dr Sedan (4.6L 8cyl 4A)
There have been two annoyances: 1. Readablility of instruments in bright sun is very poor. 2. When very hot; i.e.sitting on hot macadam for hours and/or driven hard, the steering has a tiny "thunk" feel on occasion when making a turn. It's been traced to a universal joint in the steering linkage. Dealer got 95 percent of it out, but a slight amount remains. I suspect it might be a design flaw. Had Lexus LS-400 before. Buick is as good and in many ways better. Recently drove 09 Lexus ES-350. Prefer Buick. Smooth, silky traveler; head-snapping acceleration; quieter than new Lexus; 19.7 mpg around town; very little roll on twisties (not a sporty car, though); 4-spd is slick.
Memory seats and mirror; heated seats; car phone; XM radio; styling; road feel; price; quietness (at 75 mph, wife and I have quiet conversation); mpg.
Improve visibilty of instruments under all lighting conditions; stiffen struts slighly (more like Avalon); tack down floor mats.