(TrendHunter.com) Sonic is putting a spin on its classic cheeseburger with the launch of its new Sonic Griller. Available now for all Sonic App users and available as of May 1, 2023, for everyone else, the new Sonic... (TrendHunter.com) Sonic is putting a spin on its classic cheeseburger with the launch of its new Sonic Griller. Available now for all Sonic App users and available as of May 1, 2023, for everyone else, the new Sonic...