I owned one for about 2 years. Great car. My son would still be driving it if a minor wreck hadn't totalled it in the eyes of the insurance company.

I think the non-obvious things to look for are the condition of the front end components. Specifically the ball joints, struts and steering links. Also, I'd be leary if there if there is any indication of poor shifting from the transmission. I think these engines are pretty robust if they haven't been overheated.

Good luck.

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Tom Savage
Vienna, WV
1984 300D Euro
1995 S320