The 330 HP roadster is not a Limited, it is an SRT6.

Visual differences are the SRT6 has; a fixed wing, chin spoiler, 15 spoke wheels, larger front brake rotors and calipers, SRT6 badge on deck lid, seats with Alcantara suede inserts and SRT6 logo stitched into the headrest, 200 MPH speedo, SRT6 logo on tach face, engine has a unique belt cover with separate air box covers, SRT6 letters cast into the exposed valve covers and a supercharger under the belt cover...(did I miss anything).

The easiest way to tell the difference between an SRT6 and Limited is to press firmly on the accelerator pedal...WHEEE.