The way that I would do it is this. In your main simulink model, right click anywhere go to ModelProperties -> Callbacks -> StopFnc and you get a blank area you can code into. What this area does is it runs the code there every time the model finishes. So you are putting the data into the struct as if you typed these commands after each run, but this does it automatically.
Then put in there the code
CT.Front_Wheel.Angle = toWorkspaceVariableName;
And repeat that for however many variables you want to put in the struct.
