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Plenty of people have voiced their disappointment with the fifth-generation Toyota GR Supra because it wasn't developed completely in-house, and produces less power than its BMW counterpart, the Z4. But a lot of those criticisms faded away when several dyno tests measured the Supra greatly exceeding its factory ratings of 335 horsepower and 369 lb-ft of torque. Of course, the BMW-sourced turbocharged inline-six has tremendous tuning capability if the Supra's output still isn't enough for you, and speaking with the car's chief engineer Tetsuya Tada, Autoblog learned that more powerful variants are on the way.
"With a sports car, the promise is to offer more performance with each additional version," Tada-san said. It isn't clear what these additional versions will be called, but we should see them every year. No official figures were mentioned but Autoblog expects an additional 50 hp could be coming in the next three years. BMW hasn't ruled out offering the upcoming M3's S58 engine producing over 500 hp for use in the Supra, but Toyota reportedly hasn't reached out yet to inquire about using it. In addition to a power upgrade, the Supra will receive other performance options such as carbon-ceramic brakes.
More output and stopping power would be welcomed additions, but Tada-san also confirmed what options will not be coming to the Supra. A convertible version has been ruled out because "The relationship between the Supra and the Z4 resembles the relationship between the Porsche Cayman and Boxster," Tada explained.
He also quashed our dreams of a manual transmission, saying that "Customers who want a manual should choose the Toyota 86." This is a bit disappointing for those who were holding out hope that Toyota would cave into demands for a manual transmission. But the Supra still has a bright future with plenty of potential performance variants. "We have many ideas," Tada said.