Hi , I purchased my 2005 98000 mile GS430 in May and had to travel to Felixstowe from Teesside to get it. I also wanted a pre 2006 model for the tax reason. Ironically the car was from Teesside initially with local Lexus dealership service history. It had just recently been fitted with a full cat back bespoke stainless steel exhaust which sounds just right without being loud. Plus the shock absorbers had been replaced. The previous local owner had just had the cambelt done along with the radiator and a service, and after getting in touch with him he popped round with some new lexus mats he bought for summer use. A lucky buy I guess but it did have its faults. ie the rear view mirror had lots of marks on in behind the glass and the reverse camera didn't work, these were both changed with ebay items which were still pricey but a fraction of what the new cost would have been. Fuel consumption is about right with what you've been told. I went to Santa Pod earlier this year and took it steady going there to see what I could achieve and managed 36mpg, coming back I drove a steady 80 ish and still got 32mpg. I also liked the auto distance setting on the cruise control which maintains a set distance from the vehicle in front of you. The throttle seems fine to me but I haven't driven an IS300 to compare. Mine only came with one key which is a shame as the previous local owner traded it in at a BMW dealership with 2 keys and one was lost by them. I've tried chasing it up but getting nowhere. MY only other concern was the fact that the gearbox isn't serviced and is apparently sealed for life. However I did some research on line and managed to change mine a few times now and was surprised at the colour of the oil that came out. I'm really pleased with mine but find I'm not using it as much as I'd like to and subsequently the battery is draining. Plus I work in a steel works and although I'm not immediately affected by the job losses in the news I may have to revaluate as to whether its a feasible option to keep it as my guilty pleasure or pass it on to another enthusiast . Anyway, I hope I helped answer some of your questions. Mike.