I know the 530 has a slightly larger engine, but can you feel the difference? The 1999 had 58k and a 10/100k warranty while the 2002 has 80k on it already (I don't know how much of a warranty I could get). I know the 2002 has navigation, but no heated seats, no performance / sport package. I've yet to get the full details of the 1999, I'm going to look at it today. Are there any problems with either of the years?