I'm on my phone so pix aren't at all easy but just google
"karakoram highway". 1300km China to Pakistan, long straights, sweepers and steep switchbacks that make the Eiger look like I 84. Think Pike's Peak for hours and hours and hours...normally, I'm thinking if it's on tarmac, I will roadtrip in my E55 cuz it eats miles like nothin's business. But this here, is more of a challenge. So what car do you want to drive where services and infrastructure are scant, so you want tires and brakes to last a looong time. Likewise something that goes a long ways tween fillups. That is nice and comfy, cuz 1300km. Oh and you will be motoring at more than 15kft. So maybe the Atom isn't such a good idea after all. My car would eat its tires and brakes in 100 miles on roads like that. But I don't wanna drive something slow and boring there either.
Not that I'll ever get a chance, but that's not important. What car? What other variables am I missing compared to your typical USA x country drive? Go!