If you returned to your car in the hardware store's parking lot to find the center rear stop light lens from the trunk lid laying on the ground, you'd think a vandal tried to pop it to mess with the door lock. Right? Nope, they just fall off, and the Dealer has seen lots like that. Now the little flap wing that comes out from the left front trunk lid edge when the retractable hardtop is put down just droops and messes up the top raising and lowering cycles. You have to press it back into position to get top function.
Sexy looks and handling.
The S550 has nicer driver controls and instrumentation, and costs less than the SL550. A Toyota Highlander has a better, easier to use, and more informative map display on the GPS navigation. The sound system in my 2008 Toyota Avalon is far better and more advanced than the SL550. More Leg room.