percentage of the path that the car has travelled. You must therefore
modify the expression to reflect this change.
Wire wheel rotation to a path:
1 In any viewport, select the animation path (CarPath) then go to
the Utilities panel.
2 Click Measure and in the Shapes group, take note of the path length.
3 Select and right-click the Point helper, then from the menu choose Wire
Parameters. (You may need to adjust the model in the Perspective viewport
to better select the helper.)
4 From the menu, choose Transform > Position > Path Constraint > Percent.
5 Click one of the car wheels and choose Transform > Rotation > 4th Euler
Rotation > Z Rotation.