A/C never worked.
Turn signal relay failed shortly after I bought the car.
Plugs and wires replaced at 132000km.
Front engine mounts cracked around 128000km but never replaced them.
Tie-rods needed to be replaced, but I never replaced them.
Needed new front shocks. (never replaced them either)
Timing chain worn.
Transmission slip on a 2-3 shift.
Small oil leak from valve cover.
Minor transmission leak.
Door panels cracked and falling off.
Numerous light bulbs burnt out prematurely.
Several electrical glitches.
Despite all the numerous things that went wrong with this car, it really wasn't a bad car. I bought this car in July 2007 for $2600 and sold it in April 2008 for $3300.
I live in northern Canada where we have long winters and the temperature drops to about -45C. I used this car as a daily driver throughout the winter, mostly trouble-free. My Neon always started even on the coldest days. I was pleased and surprised about how well it held up through the winter
This car is made of some of the cheapest material, and therefore parts breaks easily.
This car handles very well under most conditions.
Surprisingly bad gas mileage. (About 21mpg average)
Car was very noisy.
I finally sold it in April as I could not afford the repairs it needed.
Sold it for $700 more than I payed for it, so I'm happy.