Almost four years to the day after Stephen Voltz and Fritz Grobe posted the (literally) explosive video featuring the Vegas-worthy fountains that they created from nothing more than Mentos dropped into two-liter bottles of Diet Coke, the pair has returned with a striking new endeavor.
What started out as a backyard gag of the “dude, do you know what happens when you mix Mentos and Coke” variety turned into one of the most viral videos of all time.
Their latest feat? A rocket car powered by Mentos and Coke Zero. After years of work, the Coke & Mentos guys have harnessed the explosive power of these geysers and achieved human propulsion! 108 bottles of Coke Zero and 648 Mentos mints combine to propel the internet celebrities into the annals of unusual records.
The Coke Zero & Mentos Rocket Car uses a piston mechanism: a six-foot long rod sits inside a six-foot long tube attached to each bottle of Coke Zero. When the Mentos drop into the soda, the pressure tries to push the rod out of the tube. With 108 rods all pushing at once, that provides the vehicle a lot of power.