GTO

GTO is an abbreviation of:
 * Grand Touring Over, the International Motor Sports Association category for production cars over 2500 cc (later revised to 3000 cc)
 * Gran Turismo Omologato, a model name used on several automobiles:
 * Ferrari 250 GTO
 * Ferrari 288 GTO
 * Pontiac GTO
 * Mitsubishi Galant GTO
 * Mitsubishi GTO