The Carbon line represents the best performance for racers for whom the FIA 8859 certification is sufficient. You get a weight that is in-between the Zero and 8860 models, but at a lower cost.

The GT style is meant for closed-cockpit cars where a full face mask isn't required. Look to the FN or F style helmets for a full faceshield.

Stilo is the only manfacturer to offer helmets with integrated plugs, along with a proprietary drinking and ventilation system.