Rear speed sensor (relating to traction control system) replaced (blinking O/D dash light).
Driver side door window motor replaced.
Hose to heater core leaking and replaced at 25,000 miles.
Leaking radiator replaced at 120,000 miles (interestingly the main coolant hoses on the car are original and still in good condition).
Rear speakers (Nakamichi system) failed and replaced.
Front lower control arm rear bushings worn out and replaced, along with front struts at 132,000 miles--handling now like new again.
Leaking gasket around coolant level sensor (in the coolant reservoir) replaced long ago--Lexus said whole sensor needed replacing and it was expensive ($300?!?!)
Rear transmission housing leaking fluid and fixed about 110,000 miles.
Some dash lights (needles and background) going out intermittently.
Antenna mast not working but motor still functioning; will be attempting replacement of mast.
Cornering light burnt out.
Steering rack leaking fluid and replaced with rebuilt unit about 80,000 miles, no further steering problems since.
One of the front brake calipers was leaking fluid and required replacement at about 115,000 miles.
Head gasket leaking and replaced at 90,000 miles.
An elegant and luxurious car, and well behaved even up to 130 MPH, which I managed on Montana highways back in the good old days.
I've had this car for over 13 years and been happy with it the whole time. It's had its issues as documented but all in all it's reliable, comfortable and performs well.
Gas mileage is not bad for a V-8; 27 mpg on long highway trips.
Will be keeping this car for the foreseeable future.