GR SUPRA GT4 Concept Revealed! [Updated with Geneva Show photos]

Bryster

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Updated with live photos from world debut at the 2019 Geneva auto show:

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https://newsroom.toyota.eu/toyota-gr-supra-gt4-concept/

Developed for potential motorsport role

  • World debut of the new GR Supra GT4 Concept at the 2019 Geneva Motor Show
  • Designed and engineered to comply with international GT4 competition regulations
  • The GR Supra GT4 Concept explores how the new Supra could be used as the basis for an affordable and competitive car for privateer racers
Toyota presents the world debut of the new GR Supra GT4 Concept at the 2019 Geneva Motor Show on 5 March. It is a design and engineering study that explores how the newly launched fifth generation of the legendary Supra sports car might be developed as a competitive machine for international GT4 racing, accessible and affordable for privateer racers and small teams in line with Toyota’s worldwide support for grass-roots motorsport.

The road-going Toyota GR Supra has essential qualities that make it an attractive proposition for GT4 racing, with its perfectly balanced chassis, two-seater cabin, highly rigid and light weight body, rear-wheel drive and very low centre of gravity. The combination of the short wheelbase and wide track gives it an ideal 1.55 “golden ratio” for excellent stability and agility, which are valuable assets in a series where the regulations use a balance of performance calculation (adjusting weight according to engine power) to ensure even competition across the field.

The concept model, developed by TOYOTA GAZOO Racing, is instantly recognisable as a Supra and maintains the road car’s low, muscular shape, but with increased length and lowered height. A specially-designed front diffuser and rear wing have been added to the GR Supra GT4 Concept to improve airflow around the chassis, reducing drag and optimising downforce. Both items are constructed using composites made from natural fibres such as hemp and flax, replacing the traditional carbon fibre in order to reduce the impact on the environment. Original alloy wheels have been replaced by five-hole OZ 11 x 18in racing wheels.

The MacPherson strut front and multilink rear suspension design is carried over, but with the addition of competition springs, shock absorbers and anti-roll bars. The high-power deceleration required for racing is provided by high-performance Brembo brakes.

Under the bonnet, the GR Supra GT4 Concept retains the 3.0-litre straight-six-cylinder petrol engine with single twin scroll turbocharger, coupled to an automatic transmission. Performance is increased with help from a motorsport-grade ECU and bespoke wiring looms. There are also motorsport-specification drive shafts and limited slip differential.

The stripped-out cabin is fitted with a high-strength roll cage and FIA-standard fire extinguisher and OMP racing seat. The concept car is also equipped with a motorsport-specific fuel tank and a fast refuelling system.

GT4 is one of the world’s fastest-growing motorsports categories, with national and regional competitions in Europe, North America, Asia and Oceania. Established since 2006 and sanctioned by the FIA, it is designed to be a value-for-money series for both professional and amateur racers, and a potential stepping-stone to GT3 competition.

TOYOTA GAZOO Racing will evaluate the interest shown by potential customers in the Supra GT4 Concept before deciding on future development of the vehicle.

Toyota GR Supra GT4 Concept technical specifications

Chassis

Length: 4,460mm
Width: 1,855mm
Height: 1,250mm
Weight: Not disclosed at this time
Construction: Steel body with high-strength roll cage
Front diffuser: Natural fibre composite
Rear wing: Natural fibre composite
Fuel tank: Motorsport specification with fast refuelling system
Driver’s seat: FIA-standard OMP racing seat

Engine & transmission

Type: In-line six-cylinder, single twin-scroll turbocharger
Displacement: 2,998 cm3
Max. power: Not disclosed at this time
Max. torque: Not disclosed at this time
Transmission: Automatic, rear-wheel drive
Differential: Motorsport-specification limited-slip differential
Driveshafts: Motorsport specification

Suspension, steering & brakes

Front suspension: MacPherson strut
Rear suspension: Multilink
Coil springs, shock absorbers, anti-roll bars: Motorsport specification
Steering: Electro-hydraulic, rack and pinion
Brakes: Brembo racing brakes
Wheels: OZ five-hole 11 x 18in
Sponsored

 
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alphaneon

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Is it probable that this will have real functional vents?


Also yes, this is my first post after snooping around here for like a year. haha
 

Therealist

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If that is the GRMN then it’s a huge disappointment. What happened to the wider arches of the racing concept? Like TRD used to do...
 

Supra21

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If that is the GRMN then it’s a huge disappointment. What happened to the wider arches of the racing concept? Like TRD used to do...
Hoping this is a simply a glimpse showing that something is coming...if it's an actual depiction I, myself, am a bit disappointed!
 

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I doubt this is anything like the eventual GRMN. From the looks of it it is just a concept for the eventual GT4 race class like the Racing Concept was likely representing GTE.

Some parts may be similar on GRMN but if the looks are like this it will be very disappointing. That said I love that wing!
 

Novice_Mentality

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After, you put about fifteen grand in it or more. If we have to, overnight parts from Germany.
Hopefully with the GRMN version, we can change this to Japan haha
 

DesmoSD

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Weird, vents are still blocked off on #becauseracecar?!

I'm all about competition so how do you guys think this will do against the real GT4.

Engine Aluminum six-cylinder mid-mounted boxer engine, rigid mounting
Displacement 3,800cc
Stroke 77.5mm
Bore 102mm
Max. power 425 HP @ 7,500 RPM
Max. torque 313 LB-FT @ 6,600 RPM
Compression ratio 12.5 : 1
Transmission Rigidly mounted performance-based 6-speed PDK-gearbox (DCT, dual clutch transmission)
Weight 1,320 kg (2,910 lbs)
Sponsored

 
 




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