Like for instance, my dad has a 98 LS400 he's had since new that I've always loved. Its what made me want a Lexus. When I was shopping for mine, I almost got a 2000 LS with 30k miles instead of a new ES. now, the 98 and 00 LS are exactly the same, no changes. There was a Platinum Edition in 00, but thats it and this car was the same. Except for the color it was identical to my dad's. However, it was just better! For one, the motor in the power tilt wheel had been improved to be better. Now, before I drove the 00 the motor in the 98 seemed fine. They improved something that wasn't the best, but the driver didnt even know needed improving.
Just a little example/