A car comes up to a crossroads and turns. Traffic keeps left, so the left turn hugs the near corner while the right turn swings wide through the middle of the junction. The car slows down before the arc, leans on the way round, and speeds away once it is straight again.
The panel names at the top right open the drive, car, and scene panels. Drive holds the turn buttons and sets the cruise speed, the speed through the arc, and the radius of each turn; the camera either follows the car or stays on the junction. Car sets the paint, the glass, the wheels, and the signals. Scene sets the ground, the sky, the shadow, and the trees and buildings.
Drag the stage with the left button to swing the view around, drag with the right button to slide it, and use the wheel to zoom. Double-click to put the view back. Double-click a panel title to switch how the panels are laid out: in the movable layout you drag panels wherever you like and keep several open at once, and in the fixed layout a single panel sits in the top right. Panels can be resized from any edge or corner.