I owned the Sundance for 13 years (bought new). I really enjoyed the car and it turned out to be very reliable. It was great for moving - great for carrying lots of stuff. I just donated it to charity - someone could still get more use out of it. I was sorry to see it go.
I'm an ex-Chrysler engineer and bought a two tone Blue/Gray 1990 Sundance RS from a Chrysler executive turn-in in 1991. It had approx. 6,000 miles on it and was a 2.5 Turbo 5 spd. I owned it for approx. 4 years and drove it to work and for pleasure. It was one of the best cars I've ever owned and I sold it with 106,000 miles on it. It was fairly fast in its day and would get almost 30 mpg on the interstate, handled good especially if you had some weight in the trunk like when you were on vacation. If I remember correctly, I replaced the stock tires with one size over Bridgestone GOO 9's, which made it look meaner and handle/stop better. I never had any problems with it even though it was driven fairly aggressively, except for replacing a front wheel hub bearing.
I owned this car for 2 1/2 years... had 104000 when bought. Had many problems, including bad exhaust, gas tank, no A/C, electrical, rack and pinion, comuter chip, brakes. VERY rusted out... frame was bad. However, I got into a car accident and my car protected me VERY well, ran into van (ran stop sign) and airbag went off and car crumpled enough to cushion- absolutely no interior damage. I was impressed. It's a good small car, but be ready for problems.
We bought this car last in jan. 09 with 16,300 original miles on it. The car is from Conn., one owner, always garaged, still has the original tires and is in mint shape all around. I know I paid more than any book value said it was worth but the car will last for us for several years as we will not run it in the harsh northeast winters. I have owned a few other small mopars over the years and have always had good luck with them. They are easy to maintain and get good fuel mileage. This car looks like the day it came of the assembly line. I mean the car is spotless underneath as well as the interior and exterior. I would recommend these older cars to anyone who is looking for a cheap ride!!
Granted, I limped mine 150,000 miles but only because I had to replace everything from the rear axle three times, the transaxle twice, the CV joints 4 times, and it was in the shop with constant mechanical and electrical problems. I gave up and sold it to a junkyard when the engine blew--literally. We took care of our cars and were always on-time with maintenance. Cosmetically, it was still exceptionally nice inside and out when it finally died.