Keep on Fappin' to your Sat-Nav. The rest of us will use things like memory and spatial reckoning. I can't imagine why you even use your windshield anymore.
I haven't seen the average fuel economy numbers for 2010 yet, but otherwise, average fuel economy topped out in 1987.
I haven't been physically comfortable in a car made since 1999.
How does Sat-Nav enable people to spend a longer time driving? Gets them lost more? Parks them in longer traffic jams? Wait, since when do people want LONGER trips?
Ok fine then. What exactly is this 'love affair?' Because, according to everything I've heard and read, this 'love affair with the automobile' is how it has expanded mobility and allows people to traverse large distances efficiently. Better fuel economy, and interior goodies allow people to spend MORE time in their vehicles, thus travelling further. Sat-Nav is just one of the pleasures of technology, in addition to mp3 capability, surround sound, multi-point airbags and heated/cooled seats to name a few.
It's not like anyone is forcing you to buy this stuff. It just enhances the mass appeal of the automobile.
Unless you're Andre the Giant, I've no idea how you cannot be comfortable in any car since the turn of the millennium. I'm 6'2, 230, and pretty much a monster truck that just happens to walk like a man, and there's only two vehicles I cannot get comfy in: the Acura ZDX and the Boxster. Every car, even a Smart car, I've been able to get comfy in, and I rode in that Smart for a good two hours without any issue.