17: Cadillac XTS
Alongside the lowly ATS model is the equally boring XTS. We’re not sure what has happened to the once-radical styling of Cadillac models, but it’s apparent that the XTS is also lacking in that department. With a high price tag and a perceived lack of quality, the XTS is about as boring as you can get. In recent years, Cadillac has tried to spruce the XTS model up to no avail (via Car & Driver).
Consumers are generally discontent with what the Cadillac brand has to offer right now. Outside of the legendary V-Series cars, the standard Cadillac fare is bland and boring. There was a time when Cadillacs were the pinnacle of luxury, but that time has passed. The XTS is a prime example of a luxury car gone wrong.