Please help me make up my mind! I've got an opportunity to get a '98 Silver/Black M3/2 fully loaded with 29k miles for $35,000 tomorrow. I was originally planning on getting a '99 Silver/Black M3/2 (unsure of options) with 24k miles for $36,500 sometime next week. Which one should I go with? What are the differences, if any, between the '98 and '99? Thanks in advance for the advice.