Worst cars ever made include the Ford Mustang II, Pontiac Aztek, and Chevrolet Vega - automotive disasters that destroyed brand reputations and resale values.

These engine swaps ruined the character and charm of these classic cars - and there's one reason why.

To say that one particular brand or company makes the worst cars is a bold statement. After all, labeling a vehicle the best or worst can be very subjective. Some buyers, for example, might be willing ...