I am looking at this car today. Its advertised as a "low miles" (doesn't give miles in the ad) mint condition turbo for $5500. I know nothing about buying diesels, but at a 40 cents price differential betweeen premium and diesel, its time to learn. Is this an outrageous price or in the ballpark for this model? What would be considered low miles for this guy? Any other opinion or advice appreciated!

Thanks
Kirk
83 280SL Euro
84 Porsche 944