GTR

GTR is an initialism with several different meanings across transport, entertainment, and regulation. In automotive contexts, GTR is often shorthand for high-performance grand tourer characteristics. The best-known example is Nissan's GT-R, a high-performance all-wheel-drive sports car produced by Nissan since 2007. Although the official model name uses the hyphen and uppercase letters GT-R, fans and media sometimes write it as GTR in casual use.

GTR in video gaming refers to the FIA GT Racing Game series developed by SimBin (later Sector3 Studios): GTR (2004) and GTR 2 (2006). These racing simulations modeled FIA GT championships, with realistic physics and car models. The term GTR is sometimes used to denote racing simulations in general.

Global Technical Regulation: In international vehicle regulation, GTR stands for Global Technical Regulation, a suite of harmonized standards for vehicle safety and environmental performance developed under the United Nations' WP.29 and the UNECE. GTRs aim to standardize requirements such as occupant protection, braking, lighting, and crash dynamics across participating countries. Adoption varies by region; GTRs serve as a reference framework rather than universal law.

Other uses: GTR is also the name of a British progressive rock band formed in 1986 by Steve Howe and Geoff Downes; the group released two studio albums before disbanding. The acronym GTR can also appear in other context-specific meanings.