version of the GMT610 cab). After the 2009 model year, General Motors ended medium-duty truck production. Since 2018, a medium-duty version of the GMTK2XX has been produced in a joint venture with Navistar International. Other applications While the aforementioned platforms are the ones model commonly referred to as GMT platforms, there have been other instances of the name being applied which are not for RWD and/or body-on-frame vehicles. MPVs For 1990, GM unveiled its first minivans, all of which were underpinned by the first generation of the U platform. This platform was given the alternate name of GMT199 shortly thereafter, beginning the pattern of expanded use for the GMT platform name. This pattern was kept for the 1996 second-generation and 2005 third-generation GM minivans, called the GMT200 and GMT201 platforms, respectively. With the 2010 introduction of the fourth-generation U platform, the designation GMT510 was planned for use. However, all of the GM minivans (save for the China-exclusive Buick GL8) were dropped, ergo the name went unused. For its production from 2006 to 2011, the compact wagon-bodied Chevrolet HHR rode on the Delta platform. Despite this, it was internally given the designation of GMT001. Crossovers In 2001 and 2002, the Pontiac Aztek and Buick Rendezvous were introduced, respectively. These were built upon a shortened version of the U platform which underpinned GM's minivans. As such, they were given the GMT 250 name. For 2003, Cadillac released their first crossover, the Sigma-based first-generation SRX. Being a luxury model, it was given the alternate platform code of GMT265. The successive generation SRX, on an entirely different platform, was called GMT166. In 2004, with the release of the first-generation Chevrolet Equinox, the GMT 191 name was internally used to refer to it. Consequently, the GMT190 name was retroactively applied to the second-generation Chevrolet Tracker, which could be considered one of the Equinox's predecessors. GMT192 was used to refer to the Pontiac Torrent, which was released a year later. The next application of this platform was called GMT193, used exclusively for the second-generation Suzuki XL7, which was discontinued in 2009. The 2010 second-generation Chevrolet Equinox, was called GMT172. The related GMC Terrain was called GMT177. In 2017, the third-generation Equinox went on sale, though it did not use an alternate GMT designation for its platform, and simply used the latest Delta platform variant D2XX. This decision, along with the equivalent shifts for the Enclave and