1979 Peugeot 504

A very popular car in many parts of the world, the 504 offered an efficient fuel-injected engine as early as 1968. At that time of course Americans couldn't have cared less about fuel-efficiency, but by the late '70s this kind of car had more appeal on this side of the Atlantic. And the 504 cost only $7,500 (about $28,000 in 2018) compared to the similar Mercedes 240 which cost $19,000 (about $70,000 in 2018).

    

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