I can just picture Quinny world headquarters, where three shifts of Dutch researchers in white coats open and close strollers around the clock...with circa 2000 dance music blaring over the corporate campus PA system. [More on that later.]
The Zapp is billed as "the smallest buggy ever made," by which they mean "smallest when it's folded up." At 6kg, it weighs about as much as any lightweight Maclaren (like the Quest or the Volo, for example), but it folds down shorter and tighter to fit "on a bike or in a car's footwell." Sounds impressive.
Like the Buzz, the Zapp rides above a 3-wheeled base, with free-swivel front tires. And also like the Buzz, it holds a Maxi-Cosi Cabrio car seat. [Note: this should surprise nobody in Europe, at least; Maxi-Cosi and Quinny are two brands of Dorel, the international juvenile products conglomerate. Quinny turns out to be merely an elaborate Maxi-Cosi delivery device.]
International conglomerate or not, Quinnys aren't sold in the US, but the Zapp seems small enough to carry on the plane, so go crazy.