I spotted this 600SEC on Craigslist in Denver to compliment the 600SEL I recently posted. Here is an inexpensive two door version. A lot of what I said in that previous post about the 600SEL goes for the 600SEC, just minus two doors. $5500 even with 105k miles is a heck of a lot of car for the money. You’ll need to get a lot more description than this seller offers though before pulling the trigger. It may run great, but with all the 15 year old electronics there is plenty that can be wrong. Still at $5500, drive it for a season, hope nothing major breaks, and then sell it for what you put into it.
~Evan