They could do 100 miles a hundred years ago with a car with basically no capacity, and no safety features. Incredible progress has been made since then, but nea

They could do 100 miles a hundred years ago with a car with basically no capacity, and no safety features. Incredible progress has been made since then, but nearly all of it has been eaten up by expansion in other performance parameters, all of which require more weight. This even applies to ICs. Modern engines are actually marvels. If you stuck them into late 70s imports, you would get truly astonishing mileage. Just no A/C, minimal leg room, and no crumple zone.