If you’ve paid any attention to the Toyota Supra in the last four years, you’ll know it’s essentially the bottom line. Assembled by Magna Steyr together with the Z4 convertible in Austria, it uses BMW engines and has a BMW interior. So it’s no surprise to hear that the new manual transmission for the Supra is also BMW.
Toyota told The Drive that it is working with BMW and gearbox supplier ZF to come up with a transmission specifically for the Supra.
“The parts used in the gearbox come from a combination of manual transmissions manufactured by ZF, but the combination of parts is exclusive to the GR Supra,” a Toyota spokesman told The Drive. “Toyota has partnered with ZF and BMW on the design / layout of the gear lever / pedal, the final gear ratio solution, the iMT tuning [Toyota’s rev-matching] function and a sense of change. “
While the clutch pedal appears to be raised directly by BMW, the lever itself is brand new, unlike any BMW switch sold today. Toyota says the switch is uniquely positioned to provide effortless switching and avoid any contact with the dashboard. Those who have read the news about the manual Supra will know that the final gear ratio has been increased from 3.15 to 3.46 to prevent slow starts and the feeling of low acceleration in gear.
The Supra transmission has its own unique part number in the BMW catalog, according to The Drive: GS6L50TZ. This designation, as stated in the publication, is quite similar to the number found at the six-speed currently used in the four-cylinder Z4 sold abroad: GS6L40LZ. This is not entirely surprising, given that both gearboxes must fit in the same transmission tunnel. Although not confirmed, Toyota probably took this transmission and modified it for use in the Supra.
Unlike the Z4, however, the six-speed will only be available for the six-cylinder Supra models. Since deliveries are due to start later this year, it’s only a matter of time before we try one ourselves.
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