The above post by wnut is a classic example of why no-one should ever buy a car manufactured on a Monday or Friday!
However, I think that you may have been unlucky. I stopped buying new cars after my last Crown, and usually just buy larger engined cars that that have been p/x'd for tiddlers, and which the dealers really have no interest in trying to sell.
Choose wisely, and you can pick up some cracking bargains. My current gas guzzler is a 3 litre Jag, with about 130,000 on the clock which has sailed through the last 3 MOTs. Chose it after giving the tyres a good kicking, which didn't break any toes, so I knew it was a good'un.