I haven't posted for ages (no longer an IS250 newbie!) but have just changed my old IS250 over to a new one so thought I would comment.
My PCP contract is up in January so I have been searching for a replacement since October. Looked at all of the usual suspects and found them all lacking in at least one respect against the Lexus.
BMW 320d - Great to drive, but not much else. However, if that is your main criteria you will not find better. For me though, you will get used to any car and its driving style. Once the novelty wears off, then you have to live with the rest of the car. I could not live with the rest of the BMW.
Merc C class - Where to start?! Expensive, stupid vinyl (sorry - immitation leather) seats, expenisive, bland looks (to my eyes), really expensive. Its only advantage - its a Merc!
Audi A4 - Very close - In fact if the new one was available, it may even have won, but overall, the Lexus is better than the current version.
Ford Mondeo (yes really) - A really good car. Great to drive, well built, good equipment, OK looks, less common than a BMW 320. Only disadvantage - Its a Ford! (I know - this makes me a real snob, but I would imagine that this is a real problem for Ford who have basically designed a fantastic car)
Also looked at Honda Accord and the Mazda 6. Both were good, but Lexus was better.
So, for the first time ever, I have the same car back to back. Brand new shiny Black/Tan IS250 SE Auto MM with Lexuscare iPod Doc was delivered yesterday to replace similar Silver/Black version with Vaistech iPod dock.
My first impressions are that the new one is tighter in build quality. Some minor changes (posted elsewhere I think) - Auto locking doors, soft rear seat pockets, 4 DVDs for the Nav system covering all of Europe in detail, slightly different texture for the steering wheel leather (yes....I am officially a saddo!). MLS also sounds sharper to me.
I bought it through Broadspeed because my local Lexus dealer really could not be bothered to try and sell me anything. Never rung me back on numerous occasions, etc etc. Lexus dealers (or at least my one) would not last 5 minutes selling software! Very happy with Broadspeed and would definitely use them again. So, very happy with my new car, and, I am sure, will be for the entire 3 year contract, by which time there should be a brand new version I hope.
BTW, even though Lexus never win road tests (BMW is king), they always score very highly in long term tests. It would appear that you DRIVE a BMW, but you OWN a Lexus.
Bob