The phrase "numbered dash" refers to a symbol or mark that represents a particular number or value. It is usually a hyphen or a line that indicates a numerical quantity or an ordered position. Full definition
-- Hennessey & Venom 650R Badges — Hennessey Windshield Banner — Hennessey Venom Power Floor Mats — Serial Numbered Dash Plaque & Engine Compartment Plaque — Limited Production — Only 200 units will be offered for sale for the 2008 Viper model year. (thetorquereport.com)
Interior embellishments include premium Hennessey floor mats, Hennessey embroidered headrests, as well as serial numbered dash and engine plaques. (bestride.com)
These special models feature an upgraded suspension, lightweight BBS wheels, leather Recaro seats, and Brembo brakes, along with «Final Edition» badging and a special numbered dash plate. (automobilemag.com)