GTV Prototype provides cluster and trim interior component prototypes which provide excellent representation of production intent for both appearance and function. Cluster trim and related control knob components present unique challenges in that they combine requirements of human factors and perception with electro-mechanics, LED optics fine assembly function, and tactile feedback to the user. Combinations of texture, color, paint, laser etched graphics as well as refined features on items such as pointer needles, light housings, light guides all further add to the challenges. The fact that GTV has established a strong history in this area of prototype is a sign of our commitment to quality and willingness to take on challenges which help our customers succeed.