Finally got a late 2005 IS250 SE with 65000 miles on it, paid just over 3500 for it. The body and Interior were in really nice condition and No advisories on MOT throughout its life. Seems to have been a Loaner/Demo car (at least that's the story the seller said).
Drives smooth on the highway. When I reverse, the brakes make noise, and in really slow maneuvering, when i apply brakes slowly while turning left, the steering runs to that side, I think its the sticky brakes, will get it done on the next service as the rear rotors have anyway developed a lip.
Just observed a very odd thing. I drove it down after buying it for about 200KM and then once I was back home at the garage I stopped and put it into reverse and all the lights on the dash lit up like an Xmas tree. Everything was still running and all... Stopped the car and started it back up and it was normal again. (????) Did not happen again till now, but will keep an eye out.