It's a sure bet that self-driving cars will utilize hypermiling techniques even better than humans can, since not only will Google's flavor will be mapping the roads in 3D, but any vehicle controlled by a computer can adjust gear ratios and RPMs exactly to get the desired performance. Getting cars with 100MPG could be as simple as the right software, data-collection, and control systems, though better engineering can't hurt.

Do John and Helen give "efficient driving" lessons? It's something we all need...

While note worthy my criticism is they must of only been driving 35 or 40 mph? Hardly real world driving on an American freeway or highway? My time is a little more valuable to me and if I took 3 whole days to drive 1600 miles I've got WAY to much time on my hands! That being said, good job VW for making an out of the box car that can do this. :-)

Ford? Chevy? Dodge? Care to comment...???

They drove 1626 miles in a VW and not one break down. That's what is truly amazing.

And the car wasn't modified in any way? I don't understand, was this a normal standard car? What was there secret. Is this couple from some modding community?

Sorry, but this reminds me of people who claim to have bought $6 zillion worth of food at the supermarket, using coupons, for only $2.31.....what's the REAL secret behind the mileage here??

I read all their tips – there is no way they would ever account for that kind of fuel efficiency... What they are describing is exactly how I drive already – with a KIA Spectra... I live and drive in Los Angeles, where all people are crazy or insane and where I am the only person driving in accordance with their tips – since years back and not from any lectures or advise from any source...it's all common sense... And it won't account for the fuel efficiency they report...there is something missing here... They describe....the way I drive! ...in a "stock Volkswagen" ...which they additionally burdened down...?? – ...no way...this is not believable....

My brother and I drove from Denver CO to Virgina Beach a 1,773 mile trip in about 25 hours on the road. So obviously we averaged about 71 mph.
Assuming 2 and a half days travel, 14 hours a day is 35 hours 1626 mile and a little calculation gives an average speed just under 46.5 mph. Not what I would call real world driving conditions.

silly why not go twice as slow and get 120 or 150 mpg? wle