Honestly, please report back with a plan that gets the USA from 30 million people in 1860 to 300+ million people today without using the internal combustion engine.

Well yes, but the question is just how large. In a small car, there probably simply wasn't enough room without completely changing the chassis design. But really, WhyTF do you need a 10k mile service interval? No one expects to drive 10k miles without refilling the fuel tank. No one even expects to drive 10k miles without refilling the windshield washer fluid tank! Car companies don't expect people to drive 10k miles and then take their car to the dealership to put more windshield washer fluid in for them; any moron can refill that tank with a $1.50/gallon bottle from Walmart. But somehow people aren't competent to refill their AdBlue tank and need ridiculously-long service intervals? But they can be trusted to refill their fuel tanks with a highly-flammable and toxic substance (one with poisonous fumes, no less) every week or two?