Toyota Supra GT4 Development Still in Early Stages

Toyota GAZOO Racing showed their Supra GT4 Concept at the Geneva motor show in March, but the word “Concept” must be emphasized. While they are planning to bring the car to market, and parading it on the media accounts, the entire program is very early in its development. With no existing sales and support team based in the United States, let’s investigate what it will take to bring the GT4 to IMSA and SRO GT America competition in the U.S.

GT4 is an international homologation specification that is owned by the SRO Motorsports Group and adopted by race sanctioning bodies around the globe. The Supra GT4 will be entering a class that includes entries such as the Aston Martin Vantage, Audi R8, Chevrolet Camaro, Ford Mustang, McLaren 570S, Mercedes-AMG GT, Porsche Cayman, and — of course — the BMW M4.

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Porsche Brings Back 6-cyl Power to 718 Spyder and Cayman GT4

Either in response to customer demand, or as part of its plan all along, Porsche is introducing a new 4.0-liter 6-cylinder engine for top-tier 718 models. Mercifully, these will be offered with a 6-speed manual transmission as standard in either the Spyder and Cayman GT4.

The new naturally-aspirated 4.0-liter engine is derived from the current 911 Carerra turbo engine. With displacement increased, power goes up from the last Cayman GT4 by 35hp. The 718 Cayman GT4 will make 414hp at 7600 rpm, on its way to an 8000 rpm redline. In the 718 Spyder, this represents an increase of 44hp over the previous droptop. Torque peaks at 310 ft-lbs from 5,000-6,800 rpm.

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Porsche Working Hard on Six-cylinder Versions of 718 Boxster, Cayman

There was a time when all of Porsche’s mid-engined offerings came with the distinctive growl of a six-cylinder engine. However, with the 718 opting for a more economical turbocharged four-cylinder, some enthusiasts complain there’s something missing in the noise department.

While we already knew that the company is working on a new 4.0-liter flat-six for the returning GT4, rumors arose that the engine could make its way into less-hardcore variants of the 718 after a basic-looking Boxster was spotted during cold weather testing earlier this year. Porsche has apparently kept at it, as another 4.0-liter Boxster test mule was spotted at the Nürburgring along with a non-GT4 Cayman, according to autoevolution.

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Toyota GR Supra GT4 'Concept' Previews Probable Turnkey Racer

While the reintroduction of the Supra will undoubtedly result in custom builds, where cars are purchased only to be gutted and rebuilt as a track day vehicle, Toyota is examining the possibility of doing all that itself. The brand just announced the Toyota GR Supra GT4 Concept.

Developed as a “racing study model” based on the GR (Gazoo Racing) Supra, the car is set up to compete in the GT4 European Series. If you’re unfamiliar, the category caters specifically to amateur racing drivers using factory-built race cars available to the public — though custom team builds can be approved by the FIA. While that series is this vehicle’s primary concern, Toyota said the GT4 would also be eligible for the IMSA’s Michelin Pilot Challenge, Blancpain GT World Challenge Asia, Super Endurance Series, and more.

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Porsche 718 Cayman T Likely on the Way for 2019

When Porsche submitted a VIN decoder guide to the National Highway Traffic Safety Administration for its 2019 model year vehicles, AutoGuide noticed a new addition — the 718 Cayman T — back in July. Details were spartan, with most specifications listed as TBD. However, the guides did specify a 2.0-liter powerplant and some weight savings over the standard model.

New details have emerged since then, suggesting the engine may be bigger and more powerful than initially assumed.

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TTAC News Round-up: Your Factory Ford Mustang Racecar Has Arrived

Ford is offering a new turnkey GT4 series racecar, meaning ‘Stang owners can now race on a track instead of just strip mall parking lots.

That, Volvo is moving S90 production east, a Texas woman is suing Honda and Takata for almost fatally spraying her with bits of her own car, and Mopar is letting you refresh old cars with new Hemis with a lot less hassle… after the break!

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Report: Kia Won't Make GT Until 2017

Fresh after news Thursday that Hyundai wouldn’t be making a new sportscar and Kia would be, the latter Korean automaker said it has put on hold its plans to make a four-door coupe until 2017, AutoExpress is reporting.

The first sportscar from the Kia brand would likely be on the Genesis platform and could offer a range of engines all the way up to a V-8.

The GT4 is still a half-decade away, apparently.

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While You Were Sleeping: Porsche GT Brand Will Wear All The Numbers

It seems Porsche will have more than the GT2, GT3, and GT4 monikers to play with for its range of sports cars and SUVs.

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