I've had a lot of problems with mine, but still have under ten grand in it after four years.

Mine cost $35,000 new in 1983...would be twice that amount new in today's dollars, PLUS you'd have to deal with a lot of electronics going up.

Coupe quirks...slightly shorter wheelbase than sedans, so handles differently...regulators for rear quarter windows NEVER work well...so always leave those windows UP. The front doors are big and heavy, as on the Volvo "Bertone" and other coupes of the era. Any glass or exterior trim part for the coupe will be EXPENSIVE...in contrast to sedan parts, which are plentiful and cheap.

A very comfortable car to drive...eye-catching, the best "investment" you may find in a W123.

Suggested reading: "Illustrated Mercedes-Benz Buyer's Guide" by Frank Barrett, a $20 paperback that has all you need to make an informed decision on a used Mercedes...a recent issue of Mercedes Enthusiast, a UK publication, did a feature on the W123s, with a strong focus on the coupe.

Good luck.