8. Plymouth TC3
Before the Horizon, Plymouth got a version of the Omni that was called the TC3. What exactly did this car have to offer? Nothing in the way of anything unique. The TC3 was just as bad as the Omni was for the most part. Craftsmanship was downright awful on these cars and as such, the car sat on dealership lots.
There was a lot of confusion when it came to the TC3 and what it would offer. Finally, Plymouth decided to introduce the TC3 as the Horizon and revamp the model. But as a collectors car, the TC3 is just better left avoided. There are many classic Plymouths on the market that are a much better choice.