Red Bull driver Daniel Ricciardo of Australia laughs as he is interviewed by former Australian cricket player Adam Gilchrist during a promotional event in Melbourne, Wednesday, March 22, 2017. Ricciardo is back in Melbourne for Sunday&#039;s season-opening Australian Grand Prix, where F1 rule changes requiring wider tires, greater aerodynamics, bigger fuel loads and increased downforce are expected to make the heavier cars significantly faster than previous years. (AP Photo/Rick Rycroft)