Okay, I bought my IS200 Sport + Styling Kit in August 2004 from Lexus Nottingham with 41k on the clock. It had just had its 40k service and new discs and pads.
I've had some cosmetic work done under warranty; two 18" wheels corroded and the tops of the back doors still need re-painting.
Cigarette lighter needed fixing and windscreen wipers clicked each cycle, both were done under warranty.
I've asked about a wobbly gear stick in first and was told it was quite normal, car pulling when breaking and was told that was the larger wheels tramlining.
Other than those small niggles, the car is on 51k and I am more than happy so far. The only dealer brand that seems to come close is Volvo.
Quite interestingly when looking to replace my last car which was written off, I did the tour of dealers wearing jeans and a T-Shirt (I'm quite young at 26) and only Volvo, Jag and Lexus treated me well. All the others were quite rude and brash, not interested in giving me the time of day.
I'd certainly buy another Lexus, certainly from a dealer, but I would get them to write down all the agreements made before purchase, because they seem to forget things after purchase. I just stood my ground, refused to pay and complained. It seems to work, just stand your ground and you'll get what you want in the end!
I'm probably the worst customer anyone could want, especially when the dealers are used to people just paying what ever bills land in front of them.