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GM Futurliner
The GM Futurliner, also known as the Futureliner, is a custom exhibition truck built by General Motors in 1940 for its Parade of Progress touring science show.
GMC (automobile)
GMC, historically the General Motors Truck Company, is General Motors' truck- and SUV-focused brand, dating to 1911 and selling the Sierra pickups, Yukon SUVs, and all-electric HUMMER EV.
GMC Acadia
The GMC Acadia is a three-row crossover SUV built by General Motors for its GMC brand, introduced for 2007 as GMC's first unibody vehicle and now in its third generation.
GMC Denali
GMC Denali is the premium luxury trim and sub-brand of General Motors' GMC division, introduced on the 1999 Yukon and now spanning the full lineup of trucks and SUVs.
GMC Envoy
The GMC Envoy was a mid-size GMC sport utility vehicle sold in two generations, most notably from 2002 to 2009 alongside its twin, the Chevrolet TrailBlazer.
GMC Hummer EV
The GMC Hummer EV, also called the Hummer EV, is a battery-electric pickup truck and SUV line from General Motors' GMC brand, produced from late 2021.
GMC Sprint
The GMC Sprint was a car-based pickup sold by GMC from 1971 to 1977, a badge-engineered version of the Chevrolet El Camino, later renamed the Caballero.
GMC Syclone
The GMC Syclone is a high-performance compact pickup truck produced by GMC for 1991, pairing a 280-hp turbocharged 4.3-liter V6 with all-wheel drive; only 2,998 were built.
GMC Terrain
The GMC Terrain is a two-row compact crossover SUV sold by General Motors' GMC brand, seating up to five and positioned as more premium than its mechanical sibling, the Chevrolet Equinox.
GMC Typhoon
The GMC Typhoon is a high-performance SUV produced for 1992 and 1993, based on the two-door S-15 Jimmy and powered by a turbocharged 4.3-liter V-6.
Go-kart
A go-kart, also written go-cart, is a small single-seater racing or recreational vehicle with an open frame, four wheels, and no suspension, invented in California in 1956.
Gokaidō
The Gokaidō (五街道, "Five Routes") were the five major highways of Edo-period Japan that the Tokugawa shogunate administered directly, all radiating from Nihonbashi bridge in Edo.
Golden Quadrilateral
The Golden Quadrilateral is a 5,846 kilometer network of four-to-six-lane national highways in India, connecting Delhi, Mumbai, Chennai, and Kolkata as Phase I of the National Highways Development Project.
Golf cart
A golf cart, or golf buggy, is a small vehicle carrying two to six golfers and their equipment around a course, typically limited to 20 mph.
Gordon Murray Automotive S1
The Gordon Murray Automotive S1 is a limited-production, three-seat supercar revealed at Monterey Car Week in August 2026, with 64 cars built around a 4.2-liter Cosworth V12.
Gore (road)
A gore, also called a gore area or, in British usage, a nose, is the triangular paved area at freeway exits between a main road and a ramp.
Graduated driver licensing
Graduated driver licensing (GDL) is a licensing system that phases in novice drivers' privileges through supervised learning and intermediate restrictions on night driving and young passengers, reducing crashes.
Grand tourer
A grand tourer (GT, from the Italian gran turismo) is a fast, comfortable coupe built for long-distance high-speed touring, sitting between a sports car and a luxury car.
Grand Trunk Road
The Grand Trunk Road, also known as GT Road and Sadak-e-Azam, is one of Asia's oldest major roads, running from Bangladesh to Afghanistan through India and Pakistan.
Great Britain road numbering scheme
The Great Britain road numbering scheme is the system of identifiers like A1 and M25 used to label classified roads, created by the Ministry of Transport in the early 1920s.
Great Eastern Highway
Great Eastern Highway is the main road link between Perth and Kalgoorlie in Western Australia, running about 592 km and forming part of National Highway 94.
Great Northern Highway
Great Northern Highway is a 2,452-kilometer highway in Western Australia linking Perth with the state's north-west and the Northern Territory, the longest route in the state road network.
Great River Road
The Great River Road is a network of federal, state, and local highways following the Mississippi River for 3,000 miles through 10 states, from Minnesota to Louisiana.
Great Wall Motor
Great Wall Motor Company Limited (长城汽车) is a private Chinese automaker founded in 1984 in Baoding, Hebei, producing SUVs, pickups, and electric vehicles under brands like Haval and Ora.
Great White Way (auto trail)
The Great White Way was an auto trail across Iowa from Davenport to Council Bluffs, the first route certified by the Iowa State Highway Commission in 1914.
Green SM
Green SM, formerly Xanh SM, is a Vietnamese all-electric taxi and ride-hailing service operated by GSM, founded by Vingroup Chairman Pham Nhat Vuong in 2023.
Green wave
A green wave is a traffic signal coordination scheme timing successive intersections so a vehicle traveling at a set speed hits green lights without stopping.
Greenshields model
The Greenshields model is a traffic flow model proposed by Bruce D. Greenshields in 1935 that assumes traffic speed decreases linearly with density, yielding a parabolic flow-density curve.
Greeves (motorcycles)
Greeves was a British motorcycle manufacturer based in Thundersley, Essex, that built two-stroke motorcycles from 1953 to 1976 and won major motocross and trials championships.
Grey import vehicle
A gray import vehicle, also called a gray market vehicle, is a vehicle imported outside the manufacturer's official distribution network, usually legally but without official warranty.