10. BMW X6
We know that X6 sold in significant numbers and made a lot of money for the company. But we also know that such an “SUV Coupe” form is an insult to all traditional BMW design values. The BMW X6 was introduced in 2008 and based on the successful X5 platform but with different styling, lower roofline, and rear end.
The design changes limited the headroom and practicality, not to mention ruined the X5’s good-looking aesthetics. Some say that X6 looks like a frog, and it is often driven by people who are clearly not a BMW faithful. Regardless of how many they sell, the X6 will always have a place on the list of the worst cars ever from Bavaria (via Top Speed).