Sao Paolo is running out of water so much that the government contemplating having citizens flee the city and this guy wants $56k for his 968.
For those who can afford to pay USD $56K for a 968, the cost of bringing in water by private truck would be irrelevant.
Most apartment blocks and larger houses in Brazilian cities have a cistern that is replenished by tank truck. It is a booming business in those cities. Same goes for generators. Those that can afford it, do not rely on public supply of water, electricity, medical services, education, etc. Just a different way of life...