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The ZETA II Camaro is derived from the ZETA G8. The ZETA G8 is derived from the VZ Pontiac GTO. All are Holden based GM platforms. The earlier versions through the G8 used a rubber donut for the strut mount. Driven hard they wore out quickly. The ZETA II Camaro use a steel 'cake pan' covered in rubber with fiber reinforced plastic bearing plates and spring perch. The ZETA II mount will not suffer the same wear issues the earlier version mounts did.
The articulation you can see through the movement of the strut retaining plate is required to prevent the front suspension from binding when the wheels are turned. It also graphically illustrates why the Camaro does not require massive amounts of front camber. As the wheels turn camber increases due to the position of the strut shaft in the upper mount.
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