So I was bored, I had a Honda Pilot for a week, and I was... well... bored.
And I notice, this thing has a lot of cupholders and bins, so I started stacking cans...
And find enough space for 69 diet sodas. That's 69 unnecessary rest stops averted (provided you have ironclad bladder control and can actually go far enough on a single tank to need so many). As to whether you're actually
saving money by buying so much soda... (I borrowed most of these cans from a nearby store...) ...uh... probably not.