4 (number) - in Transport

In Transport

• Most vehicles, including motor vehicles, and particularly cars/automobiles and light commercial vehicles have four road wheels.
• "quattro", meaning four in the Italian language, is used by Audi as a trademark to indicate that four-wheel drive (4WD) technologies are used on Audi-branded cars. The word "Quattro" was initially used by Audi in 1980 in its original 4WD coupé, the Audi Quattro. Audi also has a privately held subsidiary company called quattro GmbH.
• The designation of Interstate 4, a freeway in Florida, the lowest unqualified number assigned and signed in the Interstate Highway System of the United States. (There is an Interstate H-1, Interstate H-2 and Interstate H-3 in Hawaii.)