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Delivery (commerce)
Delivery in commerce is the transport of purchased goods from a seller to the buyer, whose final leg, the last mile, is the most labor-intensive and costly stage.
DeLorean Motor Company
DeLorean Motor Company was an American automaker founded by John DeLorean in Detroit in 1975, best known for building the stainless-steel, gull-wing DMC-12 sports car in Northern Ireland.
DeLorean Motor Company (Texas)
DeLorean Motor Company, also called Classic DMC, is an American parts and restoration company in Humble, Texas, holding the DeLorean trademarks for the DMC-12 sports car.
Demerit point system
A demerit point system is a licensing sanction that adds points for traffic offenses, triggering license suspension once a threshold is crossed within a set period.
Dempster Highway
The Dempster Highway is a 740 km gravel road from Dawson City, Yukon, to Inuvik, Northwest Territories, and the only public road in Canada crossing the Arctic Circle.
DENM
DENM (Decentralized Environmental Notification Message) is an event-based safety message defined by ETSI that carries road hazard information to vehicles, for warnings like roadworks or slow vehicles.
Dennis Specialist Vehicles
Dennis Specialist Vehicles was an English commercial vehicle maker in Guildford, Surrey, founded as Dennis Bros. in 1901 and known for fire engines and the Dart bus.
Denso (株式会社デンソー)
Denso Corporation, founded in 1949 as Nippondenso through the separation of Toyota's electrical components factory, is a Japanese automotive parts supplier and the world's second largest.
Denza B5
The Denza B5, also known as the Fangchengbao Bao 5 (豹5) or Leopard 5, is a five-seat plug-in hybrid off-road SUV built by BYD, launched in China in November 2023.
Denza B8
The Denza B8, sold in China as the Fangchengbao Bao 8 (方程豹 豹8), is a full-size seven-seat plug-in hybrid off-road SUV built by BYD Auto and launched in November 2024.
Denza N8L
The Denza N8L (腾势N8L) is a large six-seat luxury SUV from Denza, BYD's premium brand, launched in China in October 2025 as a plug-in hybrid.
Denza N9 (腾势)
The Denza N9 (腾势N9) is a full-size six-seat plug-in hybrid luxury SUV produced by Denza, BYD's premium brand; launched in China in March 2025, it is Denza's flagship SUV.
Denza Z (腾势Z)
The Denza Z (腾势Z) is an all-electric four-seat supercar from Denza, BYD's premium brand, revealed in 2026 with a three-motor powertrain rated at 1,180 kW.
Denza Z9 (腾势Z9)
Denza Z9 (腾势Z9), sold alongside the Denza Z9 GT shooting brake, is a full-size technology-luxury flagship sedan from Denza, BYD's premium marque, launched in China in 2024 and sold with tri-motor plug-in hybrid or electric powertrains.
Denza Z9S (腾势Z9S)
The Denza Z9S (腾势Z9S) is a battery-electric executive fastback sedan from Denza, BYD's premium brand, launched in China in September 2026 with up to 1,100 km of range.
Departamento Nacional de Trânsito
The Departamento Nacional de Trânsito (Denatran) was Brazil's highest federal traffic authority, enforcing traffic law and managing the RENAVAM vehicle registry until replaced by Senatran in 2021.
Department for Transport
The Department for Transport (DfT) is the UK government department responsible for transport policy in England, delivered through bodies like National Highways and the DVLA.
Department of Motor Vehicles (Taiwan)
In Taiwan, the departments of motor vehicles are the seven Motor Vehicles Offices (监理所) and their stations, Highway Bureau agencies handling licensing, registration, inspection, and fees.
Department of Transport and Main Roads
The Department of Transport and Main Roads (TMR) is the Queensland Government department responsible for roads, vehicle registration, driver licensing, and transport regulation, formed in March 2009.
Desert Road (New Zealand)
The Desert Road is a 46-kilometer stretch of State Highway 1 in New Zealand's North Island, crossing the Rangipo Desert east of Mount Ruapehu between Waiōuru and Tūrangi.
Designated driver
A designated driver is a member of a drinking group who stays sober and drives the others home safely, a concept popularized in the United States in 1988.
DeSoto (automobile)
DeSoto cars were a mid-priced automobile brand produced by the Chrysler Corporation from 1928 to 1960, named for the Spanish explorer Hernando de Soto and known for the 1934 Airflow.
DETRAN
A DETRAN (Departamento Estadual de Trânsito, State Traffic Department) is the state traffic authority in each Brazilian state, responsible for driver licensing and vehicle registration.
Detroit Diesel
Detroit Diesel is an American manufacturer of heavy-duty diesel engines for trucks, based in Detroit, Michigan, and owned by Daimler Truck North America since 2000.
Detroit Diesel V8 engine
The Detroit Diesel V8 engine, also known as the GM Diesel V8, is a family of 6.2- and 6.5-liter diesel V8s used in GM trucks and the military HMMWV from 1982.
DEXRON
DEXRON is a General Motors trademark covering a family of automatic transmission fluid specifications and licensed fluids, first introduced in 1968 and still in use today.
Diamond grinding
Diamond grinding is a concrete pavement preservation technique, first used in California in 1965, that restores smoothness, friction, and noise levels by shaving a thin surface layer.
Diamond interchange
A diamond interchange is a road junction where diagonal ramps in all four quadrants connect a freeway to a surface street via a single bridge.
DiDi
DiDi (Chinese: 滴滴), also known as Didi Chuxing, is a Chinese ride-hailing and shared mobility platform founded in 2012, operating in China and 14 other countries.
Diesel–electric powertrain
A diesel–electric powertrain, also known as a diesel–electric transmission, is a propulsion system in which a diesel engine drives a generator and electric motors turn the wheels.