Re: Supercapacitors - "No battery. ..plus supercapacitors"
(rockets don't have to travel on bumpy roads, or be reliable for 160000km).
Hmm. I suspect the forces on a rocket (and its payload) during launch are well beyond what a Volvo is subjected to, hurtling down an potholed öljegrus road in northern Scandinavia. And reliable? You can't pull over with a spaceship and call roadside assistance if the engine goes phut.