The more I see it, the more I think that this is just an easter egg from some Amazon guys that wanted to bring in a badass truck in the middle of the re-Invent presentation.
A step up from SneakerNet ("You there, bring this bag of flashdrives to the office across the street, wouldya?"), I suppose.
Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway.
— Tanenbaum, Andrew S. (1989). Computer Networks. New Jersey: Prentice-Hall. p. 57. ISBN 0-13-166836-6.
With the recent archive.org mirror announcement, I've had visions of Griswold-era Chevys (I think his was a Chevy) careening northward over the Canadian border.