Meet the Toyota 86's little brother.

The Japanese giant officially revealed the S-FR concept at the Tokyo motor show and Tetsuya Tada, chief engineer of Toyota's sports car range spoke to the Australian media about his plans for the car.

"I already tell you Toyota's sports car goal must be three brothers - 86 is the middle [brother], top model is something like a Supra," Tada said, confirming the S-FR sits at the bottom of the family tree.

Officially the company has only released limited technical details of the car, most notably the dimensions and the fact it is front engined and rear-wheel drive, but hasn't said what is under the bonnet.

TOKYO, JAPAN - OCTOBER 28: S-FR is displayed at the Toyota booth during the media preview ahed of The 44th Tokyo Motor Show 2015 at Tokyo Big Sight on October 28, 2015 in Tokyo, Japan. The Tokyo Motor Show 2015 will be held from October 29 to November 8, Photo: Takashi Aoyama

Unofficial reports claimed the car was powered by a 95kW 1.5-litre non-turbo petrol engine but Tada didn't confirm. When asked what powers the S-FR Tada revealed he was considering three choices.

"When you see the S-FR concept I suppose you imagine it is a 1.5-litre car but nowadays I can choose many kind of engines," he explained.

"Downsized turbo, 1.5-litre naturally aspirated and something additional as well. Now we are thinking which one is the best engine for a small sports car."

TOKYO, JAPAN - OCTOBER 28: S-FR is displayed at the Toyota booth during the media preview ahed of The 44th Tokyo Motor Show 2015 at Tokyo Big Sight on October 28, 2015 in Tokyo, Japan. The Tokyo Motor Show 2015 will be held from October 29 to November 8, Photo: Takashi Aoyama

Tada also admitted that the company is unlikely to turn to a partner like it did with Subaru for the 86/BRZ or the new 'big brother' sports car with BMW.

"Partnership is one solution to sports car projects," he said. "But that's not always the solution. Somethings must be made by ourselves."

Despite the 86 already being the cheapest rear-wheel drive coupe on the Australian market, Tada hinted he wants the eventual production version of the S-FR concept to undercut it; making it a more affordable way for younger buyers to get into their first sports car.

"Everybody expects that a smaller sports car than the 86 must be more affordable," he said.

Tada wouldn't be drawn into when the car is likely to see production but said it was an important car for the brand, in keeping with company president Akio Toyoda's vision for fun to drive cars.

Interested in buying Toyota 86? Visit our Toyota showroom for more information.