If every Tesla car data transaction is 1024 bytes in size, …

If every Tesla car data transaction is 1024 bytes in size, every 10min block with 8.9mln car transactions is 8691MB in size, that's almost 50.9GB an hour, that's a little over 1.19TB a day, that's over 435TB a year. RAID5 storage 32 x 14TB x $300 = $9600.