21: BMW Z3
The diminutive Z3 is a bargain when you compare it to other sports cars on the market. You get the German engineering of BMW complete with the styling of a more expensive car. But the Z3 had shortcomings as well. The engine and drivetrain had a lot of reliability issues.
Perhaps the Z3’s biggest mistake was that it also had a flimsy interior. Owners often complain about the build quality later in the car’s life. If you were willing to put some elbow grease into it, the Z3 was not a bad deal. The Z3 still had a lot going for it and for the price you couldn’t go wrong, but it could have been better.