Audi

Audi AG (Xetra: NSU) is a German manufacturer of a range of automobiles, from supermini to crossover SUVs in various body styles and price ranges that are marketed under the Audi brand (German pronunciation: [ˈaʊdi]), positioned as the premium brand within the Volkswagen Group.^[3]
The company is headquartered in Ingolstadt, Germany, and has been a wholly owned (99.55%^[4]) subsidiary of Volkswagen AG since 1966, following a phased purchase of its predecessor, Auto Union, from its former owner, Daimler-Benz. Volkswagen relaunched the Audi brand with the 1965 introduction of the Audi F103 series.
The company name is based on the surname of the founder August Horch, his surname meaning listen in German—which, when translated into Latin, becomes Audi.

Volkswagen

Volkswagen (abbreviated VW) is the world's third largest automobile manufacturer.^[1] The company is headquartered in Wolfsburg, Lower Saxony, Germany. Volkswagen is the original marque within the Volkswagen Group, which includes the car marques Audi, Bentley Motors, Bugatti Automobiles, Automobili Lamborghini, SEAT, Škoda Auto and heavy goods vehicle manufacturer Scania.
Volkswagen means "people's car" in German, where it is pronounced [ˈfɔlksˌvaːɡən]. Its current tagline or slogan is Das Auto (in English The Car).

Car

An automobile, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods.