I think this was from an aussie/kiwi review but includes the relevant details:
Option: Sports (Cup) Chassis
The front wheel hub carriers, specific to the sports (Cup) chassis, are equipped with larger diameter bearings. The rigorous maintenance of the wheel in its correct plane, when subjected to cornering forces as well as during acceleration and braking, and the traction provided by this strengthened suspension, were the object of special attention.
The steering arm attachment points on the wheel hub carriers have been positioned lower. This adjustment to the suspension favors reactiveness and quicker steering response.
(^^Some insurance companies struggle to quantify this particular geometry revision within the factory fitted options)
Spring rates increased by 20% with matching damper settings for this version provide even more incisive behaviour.
The rear spring rates have been stiffened by 15% and the damper settings increased by 10%.
Outside, the Clio Renault Sport 2.0 16V sports (cup) chassis is distinguished by the fitting of charcoal(anthracite)-colored wheels. And for all versions of the Clio Renault Sport 2.0 16V, Renault Sport offers an aerodynamic “blade”(?) and a competition (cup?) rear spoiler, to improve airflow and to personalize the car in a way which reflects its performance.
The review doesn't mention the lower ride height, but someone covered this earlier in the thread.