LTO-9 tapes do 45TB compressed, 18TB uncompressed. And uses around 0.23 cubic decimeter of storage.
A European station wagon with the rear seats folded takes 1555 liters, with 95% utility that is 6422 tapes. That wagon can hold 289 Petabyte of compressed data
From Amsterdam to Rotterdam, it takes about an hour to get your data to its destination. That is roughly 640 Terabits per second. For comparison, AMS-IX peaked at 11 Terabits per second last year.
A fair comparison with AMS-IX would perhaps need to factor in the time spent reading/writing the tapes though. Compressed LTO-9 tapes can be fully read in about 12.5 hours, so assuming for sake of argument that your car contains 6422 compressed tapes with a total of 289PB of data on them already, and that you have (a rather expensive) array of 26 LTO-9 drives at your disposal in Rotterdam, you'll need about 130 days to fully read their data. The hour of driving across Holland is rather insignificant compared to that. All in all, you get 'only' 26 GB per second, limited to that only by having 26 drives.
A European station wagon with the rear seats folded takes 1555 liters, with 95% utility that is 6422 tapes. That wagon can hold 289 Petabyte of compressed data
From Amsterdam to Rotterdam, it takes about an hour to get your data to its destination. That is roughly 640 Terabits per second. For comparison, AMS-IX peaked at 11 Terabits per second last year.