[RickM]

I wouldn't use pre-owned tires. I had too many negative experiences with my own tires....looked great and with good tread but had internal belt issues. Some just couldn't be balanced properly or intruduced "noise" into the suspension.

I would recommend that you consider some of the lower cost brands from Tire Rack. I just purchased and installed Sumitomo (HTR 200) tires on my 380 SL. They were very highly rated. Excellent handling and very quiet. I can't yet speak for their wear characteristics. The best part is that they cost $42 each. How can you go wrong? I'm EXTREMELY happy with them and I'm picky.