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Straight-four engine
The straight-four engine, also called an inline-four or I4, is a piston engine with four cylinders in one line on a single crankshaft, one of the most common car engine layouts.
Straight-twin engine
A straight-twin engine, also called a parallel-twin or inline-twin, is a two-cylinder piston engine with both cylinders in a single row, used chiefly in motorcycles.
Straßenverkehrsordnung
The Straßenverkehrsordnung (StVO) is the German federal road traffic ordinance governing how road users must behave, traffic flow, and traffic signs; the current version took effect on 1 April 2013.
STREAMS (traffic management system)
STREAMS is an integrated intelligent transport system platform developed by the Australian company Transmax, used by road authorities across six Australian jurisdictions from more than 13 traffic management centers.
Streetfighter (motorcycle)
A streetfighter is a motorcycle style in which a sportbike loses its fairings and gains wider, higher handlebars, a style that grew from crashed 1980s sportbikes into a factory category.
Stress-absorbing membrane interlayer
A stress-absorbing membrane interlayer (SAMI) is a thin, highly elastic rubberized asphalt layer placed under a new asphalt overlay to delay reflective cracking from the pavement below.
Strida
Strida is a belt-driven folding bicycle with a distinctive triangular A-shaped frame, designed by British engineer Mark Sanders in 1985 and launched in 1987 for commuters with limited storage space.
Stuart Highway
The Stuart Highway, locally known as the Track, is a 1,766 km sealed Australian highway from Darwin to Port Augusta via Katherine, Tennant Creek, and Alice Springs, named after explorer John McDouall Stuart.
Studebaker
Studebaker was an American vehicle manufacturer in South Bend, Indiana, that grew from a blacksmith shop into the world's largest wagon maker, building cars from 1902 to 1966.
Studebaker Avanti
The Studebaker Avanti was a fiberglass-bodied personal luxury coupe produced in South Bend, Indiana, from 1962 to 1963, designed by Raymond Loewy's team in under a year.
Studebaker Golden Hawk
The Studebaker Golden Hawk was the top-of-the-line model of the Studebaker Hawk family, built from 1956 through 1958 with a Packard V8 and, later, a supercharged Studebaker 289.
Studebaker Gran Turismo Hawk
The Studebaker Gran Turismo Hawk, often shortened to GT Hawk, is a personal luxury hardtop coupe built in South Bend, Indiana, from 1962 to 1964, the last variant of the Studebaker Hawk line.
Studebaker Silver Hawk
The Studebaker Silver Hawk is a two-door coupe produced by the Studebaker Corporation in South Bend, Indiana, for 1957 through 1959, the mid-priced member of the Hawk line.
Sturgis Motorcycle Rally
The Sturgis Motorcycle Rally, first held in 1938 as the Black Hills Classic, is an annual ten-day motorcycle gathering in Sturgis, South Dakota, drawing hundreds of thousands of visitors.
Sturmgeschütz III
The Sturmgeschütz III, also known as the StuG III, was a German assault gun of the Second World War built on the Panzer III chassis with a fixed casemate gun.
Subaru (スバル)
Subaru (スバル) is the automotive and aerospace brand of Subaru Corporation, a Japanese manufacturer tracing its roots to a 1917 aircraft laboratory and known for its Boxer engines, Symmetrical all-wheel drive, and rally heritage.
Subaru 360 (スバル・360)
The Subaru 360 (スバル・360) was a two-door kei car built by Fuji Heavy Industries from 1958 to 1970, Subaru's first mass-produced car and Japan's first kei car sales success.
Subaru Ascent
The Subaru Ascent, also sold in early previews as the Evoltis, is a three-row mid-size SUV built in Indiana and sold exclusively in North America since 2019.
Subaru Baja
The Subaru Baja is a four-door car-based compact pickup-crossover sold by Subaru in North America only, from the 2003 to the 2006 model year, built in Lafayette, Indiana.
Subaru BRAT
The Subaru BRAT, sold in Australia as the Brumby, is a car-based compact pickup built by Fuji Heavy Industries and sold in North America from 1978 to 1987.
Subaru Corporation
Subaru Corporation, formerly Fuji Heavy Industries (富士重工業), is a Japanese maker of automobiles and aerospace products in Tokyo, renamed from Fuji Heavy Industries in 2017.
Subaru Crosstrek
The Subaru Crosstrek, also known as the Subaru XV, is a compact crossover SUV from Subaru, introduced in 2011 as a raised, all-wheel-drive version of the Impreza hatchback.
Subaru FA engine
The Subaru FA engine is a family of flat-four boxer gasoline engines introduced by Subaru in 2012, with 2.0-liter and later 2.4-liter versions used in the WRX and BRZ.
Subaru FB engine
The Subaru FB engine is a family of boxer four-cylinder gasoline engines built by Subaru, replacing the EJ family in non-turbocharged applications from 2010 onward.
Subaru Forester
The Subaru Forester (フォレスター) is a five-seat compact crossover SUV built by Subaru since 1997, combining SUV ground clearance with car-like handling across six generations.
Subaru Impreza (スバル・インプレッサ)
The Subaru Impreza (スバル・インプレッサ) is a compact car made by Subaru since 1992, sold with standard all-wheel drive and known for its World Rally Championship wins in the 1990s.
Subaru Impreza (スバル・インプレッサ) (second generation)
The second-generation Subaru Impreza (スバル・インプレッサ) is the 2000 to 2007 version of Subaru's compact all-wheel-drive car, sold as a sedan and station wagon and known for its turbocharged WRX and WRX STI sports versions.
Subaru Justy
The Subaru Justy (スバル・ジャスティ) is a subcompact car produced by Subaru since 1984, known for pairing all-wheel drive with the world's first mass-produced electro-continuously variable transmission in 1987.
Subaru Legacy (fourth generation)
The fourth-generation Subaru Legacy is a midsize sedan and station wagon produced by Subaru from 2003 to 2009, with standard boxer engine and symmetrical full-time all-wheel drive.
Subaru Legacy (スバル・レガシィ)
The Subaru Legacy, sold as the Subaru Liberty in some markets, is a mid-size car produced by Subaru from 1989 to 2025, with standard all-wheel drive.