5. Dodge Intrepid
The Intrepid was built by Dodge between 1993 and 2004 and during that time it received a number of awards from critics. The roomy interior, well built suspension, top notch handling, and stylish exterior were all things reviewers loved about the Intrepid. Unfortunately, the vehicle did not stand the test of time. CarComplaints.com lists the Intrepid as one of the least reliable used cars you can buy. The 99-03 model year vehicles has a serious issue with oil sludge problems in the 2.7L V-6 model, making the vehicle worthless due to engine failure at high mileages. Other issues that are noted through most models years are electrical problems, engine problems, and AC/Heater problems. Avoid this one like the plague.