These measurements are made with the car at the recommended ride height, and with no more than -1.5 degrees negative camber, front and rear.  Please note that many dimensions, even dimensions like wheelbase and track, can be slightly different, depending on alignment, equipment, and setup.  Therefore, your car may vary slightly; this is not a cause for concern, and is a normal condition.  Further it is possible for the car to be setup to have "lead", a condition where one side has a different wheelbase than the other.  This is common in some racing situations, and is one way to tune handling.  If you are trying to setup your car to be square, but the wheelbase varies slightly side to side, you can adjust the suspension as needed to get the setup you want.

Approach Angle with Track Splitter at Full Depth