A "rotary selector" refers to a device or control that allows you to choose or select different options by turning it in a circular motion. Full definition
Given its head, the SRT bellows into life, making good use of its newly adopted eight - speed automatic transmission complete with its unexpectedly ergonomic rotary selector knob. (motoring.com.au)
Upgrades also headed for the refreshed Boxster / Cayman include full - LED headlights, a new steering wheel with a 918 - style rotary selector, driver - assistance updates, head - up display, updated entertainment, communication and navigation systems. (automobilemag.com)
Optional Porsche Dynamic Chassis Control (PDCC) minimizes body - roll for increased agility, Porsche Torque Vectoring (PTV) increases traction in turns, and Sport Chrono introduces a steering wheel rotary selector to choose different driving modes for all of these systems with settings ranging from absolute comfort to razor - sharp precision. (porscheofsouthshore.com)