Need advice on 2.5rs, Difference between years Options

[razor7]

Hey Guys,
So I've finally decided to sell my celica in order to buy a Subaru Impreza 2.5rs. My reasoning is that I need something that's Awd so I can get in and around on the snow. I don't plan to be doing this till over summer, so I can ride my bike while I'm car-less.

So for the thread, I want to know the difference between the different years of the 2.5rs. I believe it was 1998-2001. I'm basically curious about all of the small, subtle changes they made, much like the differences between pre-facelift, facelift, and 20th anni. I know that the '98 had DOHC, while, '99(+?) had SOHC, but what else was changed? Also, other than timing belt, water pump, tensioner rods, and standards like plugs and oil, what else could/will go bad and when?

Thanks,
-TC

This post has been edited by razor7: Jan 24, 2010 - 4:28 AM