I am shopping for a used sedan and have identified the 300/400 as one of the best options. From the on-line research I have done, it appears the best bets in the 300 are the 1991/93. However, there is conflicting info on the 400. Some sources rate the 93 400 as a better choice than the 92, while others say the opposite. The factors here are the differences in the re-designed engine.
In general, I am concerned with reliabilty, maintenance costs, and the availability of a recommended repair shop in the South Florida area.

I am looking at a purchase price limit of $17,000.

What advice can I get on these topics?