9: Oldsmobile Cutlass Calais
General Motors invested over a billion dollars in the N-Platform cars of the late 1980s and early 1990s. The problem is that the investment didn’t pan out, and the N-Platform was one of the slowest selling vehicle lines for GM. The Oldsmobile Cutlass Calais Quad 442 is perhaps one of the most notoriously bad cars to come out of this platform. Released to try and take advantage of the historic 442 nameplate, the end result wasn’t pretty (via GM Authority).
The engine lacked real horsepower and the driving characteristics of the car were lackluster. Coupled with the cheap interior and exterior, you had a myriad of problems that ensued. The Cutlass Calais will undoubtedly be one of the worst GM cars of the 1990s. But even worse was when the company tried to market this terrible car as a sports car. Surprisingly enough, the Cutlass Calais has seemingly peaked in value lately.