At the end they say "Do you want to feel sick? Go out and buy some gas now." Because of inflation (thank you LBJ, RMN, et al) those prices are more-or-less in line with what gasoline costs today, in spite of the high state and federal taxes on it. Today the AAA price is $2.19 per gallon; in Britain it is over five dollars.
Coke, bottled water and an espresso at Starbucks clock in at $3.84, $10.67 and $320 per gallon.