Chevrolet spent some time before CES showing us how it plans to offer Corvette owners a new instrument to hone their track skills: the Performance Data Recorder (PDR). The system, which was designed with British auto engineering company Cosworth, will begin shipping in 2015 Corvette Stingrays as a factory add-on. In its simplest form, the PDR captures video with user-selectable levels of vehicle telemetry overlaid on the 720p output.