The Steady Pizza makes use of "balance by weight compensation" to keep its chewy, gooey cargo stable as it travels (which is particularly useful in other countries, where pizza is often transported not in cars, but atop bikes and motorbikes).
It steadies the pizza by, essentially, suspending it in a swing.
"The system," Dominoes explains, "consists of two hemispheres. One is fixed on the X-axis, and one is fixed on the Y-axis. Pendulums of lead compensate for movements keeping the pizza container inside level at all times. Currently, it's designed for bike delivery but there's no reason this couldn't roll out for cars, as well."