Motorists are outspoken critics. They’re among the most difficult group of consumers to satisfy and they don’t hesitate to boo a company off the stage when it loses the plot. Through sometimes harsh, this feedback helps point automakers in the right direction as they go through the difficult and open-ended process of re-inventing a nameplate for a new generation.

Here are some of the cars whose questionable design, outdated hardware, shoddy quality or uninspiring driving dynamics showed automakers they were doing it wrong – and how to improve: