The red block Volvos would also run for literally millions of miles, and outside of the turbo models were pretty thrifty on gas. We've fallen a long ways.

Volvo may have fallen a long way, but US cars of that time were literal trash that 100,000 miles was about the total useful life of the car before far too much needed replaced. I'm old enough to remember how Japanese cars started taking the US by storm because of it. They sipped gas in comparison and drove forever.