its G Sports line of aftermarket accessories, along with the FT-86 G Sports concept car. It featured G Sports carbon fibre panels, a vented bonnet, rear wing, wheels, Recaro race seats, and an interior rollcage. The D-4S engine also added a turbocharger. In 2011, Toyota and Subaru unveiled five near-production concept cars to show their progress with the project. The first, known as the FT-86 II Concept, was unveiled at the Geneva Motor Show in March 2011. ED2 refined the design of the initial FT-86, by developing new front and rear fascias, and marginally increasing the dimensions of the concept. At the same show, Subaru unveiled a transparent silhouette of the car showing the new D-4S boxer engine and displayed the "Boxer Sports Car Architecture". Scion followed in April 2011 at the New York International Auto Show with the FR-S Sports Coupé Concept, co-developed with aftermarket tuner Five Axis. Another semi-transparent Subaru concept, known as the BRZ Prologue, was shown at the Frankfurt Motor Show that September, followed in November at the Los Angeles Auto Show by the BRZ Concept STi, the first full mock-up of Subaru's version of the 86 with input from Subaru Tecnica International (STI). First generation (ZN6/ZC6; 2012) Development and production The production Toyota 86 debuted at the December 2011 Tokyo Motor Show. Its development was led by chief engineer Testuya Tada. All variants are built at Subaru's Gunma Main Plant, with the first cars assembled on 2 February 2012 before sales began in March and deliveries in April. 7,000 orders were placed for the Toyota 86 in the first month of production, while Subaru took in 3,500 orders. In the United States, Scion were allocated 10,000 units of the 2013 model year (MY13) production, while Subaru was limited to only 6,000 units. Engineering The 86's low-weight design uses an aluminium hood, a fixed roof, and a trunk as opposed to a hatchback. To improve driving dynamics, the boxer engine is mounted low in a front engine / rear drive layout, yielding a weight distribution of 53% in front and 47% in the rear and a low centre of mass height. The 86's engine, known by the Toyota code 4U-GSE and Subaru code FA20, is a naturally aspirated engine that uses Subaru's flat-four engine design, with the addition of Toyota's D-4S injection system, which uses Gasoline direct injection (GDI). With its front-engine, rear-wheel-drive layout, its engine