It lifts the tires by scooping them up wheel-dolly style.

Machines precisely like this, but manually piloted, are used in automotive plants themselves to move vehicles that fail end-of-line test, had an assembly mishap affecting the powertrain, or otherwise need to be shuffled around when they're not able to move under their own power. As long as it has tires, it can be moved this way.

Stringo™ and DJ CarCaddy™ are some popular brands, if you want to see more of how this type of lift works.