What is your location? Look in the S.F. Chronicle and L.A. Times. For one thing, they are Cali cars and S.F. Bay Area is Mercedes country. I see 4.5's in the paper every once and a while for weeks and weeks on end. These days you should be able to happen on an original owner 4.5 as my friend pointed out, the rich men that bought them 30 years ago are probably in their 70's now and are parting with them either through choice or involuntarily.