The , abbreviated as SGP, is the modular
unibody
A vehicle frame, also historically known as its '' chassis'', is the main supporting structure of a motor vehicle to which all other components are attached, comparable to the skeleton of an organism.
Until the 1930s, virtually every car ha ...
automobile platform
A car platform is a shared set of common design, engineering, and production efforts, as well as major components, over a number of outwardly distinct models and even types of cars, often from different, but somewhat related, marques. It is pract ...
for nearly all models manufactured by
Subaru
( or ; ) is the automaker, automobile manufacturing division of Japanese transportation conglomerate (company), conglomerate Subaru Corporation (formerly known as Fuji Heavy Industries), the Automotive industry#By manufacturer, twenty-first ...
, starting with the
fifth-generation Subaru Impreza in 2016. The primary dynamic benefits of SGP compared to prior Subaru platforms were improved strength, increased rigidity, and a lowered center of gravity. In addition, moving to a common platform made production more flexible and efficient; existing production lines could shift to meet demand by producing different models without significant reconfiguration, and common parts could be reused between models.
, SGP underpins all of the vehicles built and sold by Subaru. The
WRX, debuted its second generation on September 10, 2021 for model year 2022. The WRX was the last model to move to the SGP. Models built by other manufacturers and rebadged by Subaru (such as the
Justy and
kei car
Kei car (or , kanji: , "light automobile", ), known variously outside Japan as Japanese city car or Japanese microcar, is the Japanese vehicle category for the smallest highway-legal passenger cars with restricted dimensions and engine capacit ...
models), and the jointly-developed
Subaru BRZ
The Toyota 86 and the Subaru BRZ are 2+2 sports cars jointly developed by Toyota and Subaru, manufactured at Subaru's Gunma
is a prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 ...
/
Toyota 86
The Toyota 86 and the Subaru BRZ are 2+2 sports cars jointly developed by Toyota and Subaru, manufactured at Subaru's Gunma assembly plant.
The 2+2 fastback coupé has a naturally-aspirated boxer engine, front-engined, rear-wheel-drive conf ...
do not use the SGP, although the platform for the
second-generation BRZ/86 has been influenced by SGP.
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Design
SGP is the first completely new platform for Subaru since the development of the
first generation Legacy in the late 1980s; subsequent Subaru vehicles used a derivative of the original Legacy platform,
last significantly renewed with the introduction of the
fourth generation Legacy in the early 2000s.
The
Legacy
In law, a legacy is something held and transferred to someone as their inheritance, as by will and testament. Personal effects, family property, marriage property or collective property gained by will of real property.
Legacy or legacies may refer ...
-derived platform was given the (SUBARU Intelligent-Chassis) designation in 2007; the 'SI chassis' featured a fully-independent suspension, with front
strut
A strut is a structural component commonly found in engineering, aeronautics, architecture and anatomy. Struts generally work by resisting longitudinal compression, but they may also serve in tension.
Human anatomy
Part of the functionality o ...
s and rear
double wishbone
A double wishbone suspension is an independent suspension design for automobiles using two (occasionally parallel) wishbone-shaped arms to locate the wheel. Each wishbone or arm has two mounting points to the chassis and one joint at the knuckle ...
s. SGP retains the same basic front strut/rear wishbone suspension as 'SI chassis', with refinements to improve rigidity.
Fifth-generation Impreza project general manager Kazuhiro Abe stated that moving to SGP was a generational change comparable to the shift from the
Leone to the Legacy. The fifth-generation Impreza was developed over four years and at a cost of billion, a significant fraction of which went to developing SGP. Structural adhesives are used to join the floor panel and side members. Hot rolled steel in the strength class is used in the side members and sills, and pillars, reinforced with strength class steel to protect the passenger compartment.
[ Subaru claim the SGP enhances vehicle "dynamic feel" with specific benefits to:][ SGP is also equipped with pedestrian protection airbags in certain markets.][ Crash tests of the updated models using SGP led ]Euro NCAP
The European New Car Assessment Programme (Euro NCAP) is a European voluntary car safety performance assessment programme (i.e. a New Car Assessment Program) based in Leuven (Belgium) formed in 1996, with the first results released in February ...
to declare the Impreza and XV (2017, small family car) and Forester (2019, small off-road/MPV) had performed the best in their respective classes of all automobiles tested in those years. JNCAP also awarded the Impreza, XV, and Forester with its Grand Prix Award for collision safety performance assessment in those years.
SGP was designed to allow different drivetrains to be fitted, including conventional internal combustion engines, hybrid gasoline/electric, and battery-electric.[ Although initial plans had a future ]electric car
An electric car, battery electric car, or all-electric car is an automobile that is propelled by one or more electric motors, using only energy stored in batteries. Compared to internal combustion engine (ICE) vehicles, electric cars are quie ...
being developed using SGP, Subaru and Toyota announced in June 2019 they would jointly develop a C-segment
The C-segment is the 3rd category of the European segments for passenger cars and is described as "medium cars". It is equivalent to the Euro NCAP "small family car" size class, and the compact car category in the United States.
In 2011, the C- ...
battery electric SUV on a new platform; in December 2020, Subaru confirmed the forthcoming SUV would be based on the e-TNGA platform instead of SGP.
Production efficiencies for SGP-based models could be realized by manufacturing platform components for different models at the same factory, and the same line could be used to assemble multiple models.[
]
Applications
Vehicles using platform (calendar years):
* Impreza
The is a compact car that has been manufactured by the Japanese automaker Subaru since 1992. It was introduced as a replacement for the Subaru Leone, Leone, with the predecessor's Subaru EA engine, EA series engines replaced by the new Subaru EJ ...
(2016–present)
* XV/Crosstrek (2017–present)
* Ascent
Ascent or The Ascent may refer to:
Publications
* ''Ascent'' (magazine), an independent, not-for-profit magazine
* ''Ascent'' (journal), a literary journal based at Concordia College
* ''Ascent'' (novel), by Jed Mercurio
* ''Times Ascent'', a ...
(2018–present)
* Forester
A forester is a person who practises forestry, the science, art, and profession of managing forests. Foresters engage in a broad range of activities including ecological restoration and management of protected areas. Foresters manage forests to ...
(2018–present)
* Legacy
In law, a legacy is something held and transferred to someone as their inheritance, as by will and testament. Personal effects, family property, marriage property or collective property gained by will of real property.
Legacy or legacies may refer ...
(2019–present)
* Outback
The Outback is a remote, vast, sparsely populated area of Australia. The Outback is more remote than the bush. While often envisaged as being arid, the Outback regions extend from the northern to southern Australian coastlines and encompass a n ...
(2019–present)
* Levorg/WRX Sportswagon/WRX GT (2020–present)
* WRX (2022–present)
The second-generation Subaru BRZ/Toyota GR86, jointly developed with Toyota
is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...
, uses neither the SGP nor the Toyota New Global Architecture
The Toyota New Global Architecture (abbreviated as TNGA) are modular automobile platforms that underpin various Toyota and Lexus models starting with the fourth-generation Prius in late 2015. TNGA platforms accommodate different vehicle sizes an ...
(TNGA) platform, but the "knowledge and techniques" gained from the development of SGP were credited with increasing chassis rigidity and stiffness for the new BRZ. The first-generation BRZ/86 had used an SI chassis-derived platform.
See also
* Toyota New Global Architecture
The Toyota New Global Architecture (abbreviated as TNGA) are modular automobile platforms that underpin various Toyota and Lexus models starting with the fourth-generation Prius in late 2015. TNGA platforms accommodate different vehicle sizes an ...
References
External links
* (Japanese)
*
*
{{Subaru
Global Platform
Car platforms