Crew filming Malcolm's DIY mini tram
After the heist the three criminals escape in a more completed version of the min tram that Malcolm built and use for joyride at the start of the film.
The crew are using a street registered car as a camera dolly. A dolly is a device used in filming to create smooth horizontal camera movements, often tracking moving action. The camera is mounted to the dolly and the camera operator and focus puller usually ride on the dolly to push the dolly back and forth.