There are two basic reasons for this. First of all, “classic” cars were made out of stronger materials, iron, steel, etc. The problem with these materials were that they were very heavy. So to increase fuel efficiency, lighter more compact materials such as plastic and carbon fiber began to be employed. The second reason, is that modern cars are much more complicate fitted with electric windows and locks, individual A/C, anti-lock brake, power steering, and even DVD players. All these functions and require much more coordination in the form of computer “brain.” More functions means more moving parts and more places where things can go wrong. Finally, some argue that this was also a conscious realization by car companies that durable cars actually brought down their future sales.
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