GT1 may refer to
*
FIA GT1 World Championship
*
''Gran Turismo'' (1997 video game)
*
Group GT1, a top-line category in GT racing 1993–1998 (known as "GTS" between 2000–2004), revived 2005-2011
**
Toyota GT-One
The Toyota GT-One (model code TS020) is a racing car initially developed for grand touring GT1 rules, but later adapted into a Le Mans prototype LMGTP car. It raced in the 1998 and 1999 24 Hours of Le Mans.
History
Following the end of the G ...
, competed in the above category
**
Porsche 911 GT1, competed in the above category
*
GT-1 (missile), a World War II glide torpedo
*
Gemini 1
Gemini 1 was the first mission in NASA's Gemini program. An uncrewed test flight of the Gemini spacecraft, its main objectives were to test the structural integrity of the new spacecraft and modified Titan II launch vehicle. It was also the fir ...
(Gemini-Titan 1, or GT-1), an uncrewed Project Gemini mission
*
Tweed GT-1
The Tweed GT-1 is an American high-wing, FAI Open Class single seat glider that was designed by George Tweed Jr.Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 66, Soaring Society of America November 1983. USPS 499-920
Design ...
, glider
{{Letter-number combination disambiguation