Every Generation Pontiac Grand Am, Ranked Worst To Best Based On Resale Value – SlashGear

By the time that the mid-1970s rolled around, America’s muscle car heyday was already a memory. While the Clean Air Act — passed in 1970 – was one reason for the decline in powerful American cars, the straw that broke the camel’s back was the 1973 oil crisis, which caused mass fuel shortages and price spikes throughout the country — not a great time to own a heavy, gas-guzzling V8 muscle car. In 1970, Pontiac was General Motors’ performance brand,

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