/grahn" too riz"moh euh moh'leuh gay"toh, -gah"toh/ ; It. /grddahn" tooh ree"zmaw aw maw'law gah"taw/
(of an automobile) certified as conforming to the specifications, as fuel capacity and engine displacement, for a class of standard automobiles (Gran Turismo) qualified to engage in various types of competitions. Abbr.: GTO
[ 1965-70; ]