19. BMW X5 (six-cylinder)
Also landing on the list from BMW is its X5 SUV which first started production in 1999. The first generation ran to 2006 and shared components with the Land Rover Range Rover HSE model while the engine and electronics were borrowed from the 5-Series. The X5 is currently in its second generation, and according to Consumer Reports, you should stay away from the inline-six models if you’re in the used car market.
In Consumer Reports‘ testing, the six-cylinder 3.0i BMW X5 “became unstable” and was “lifting two wheels.” Despite improvements in to the 2005 model year, the X5′s handling was still unsettling at its limits. Major issues spanning from 2003-2011 that ranked worse included Engine Major, Engine Minor, Drive System, Climate System, Body Hardware, Power Equipment, and Audio System.