Here is a rumor so wild it wants a U.S. Fish and Wildlife allow. Japan’s Greatest Automotive journal stories that the next-generation Lexus IS will provide BMW’s B58 three.Zero-liter inline-six as one in all 4 powertrain choices. That is the identical engine discovered within the new Toyota Supra with 335 horsepower and 365 pound-feet of torque. What’s extra, the fourth-gen IS will resurrect the IS F mannequin gone AWOL throughout the present third era, and do it with the twin-turbo V6 from the Lexus LS 500. The present TTV6 makes the identical 416 hp within the LS 500 because the 5.Zero-liter V8 did within the first Lexus IS F 12 years in the past.
In accordance with the journal, the opposite engine choices can be Toyota’s 2.Zero-liter turbocharged four-cylinder, a 2.5-liter for a hybrid mannequin, and a 2.Four-liter turbo. We do not know the place that final engine matches in. BMW does not make a 2.Four-liter, and Toyota seems to have retired all of its 2.Four-liter purposes. Ignoring that, the three.Zero-liter straight-six seems to be like it might exchange the present three.5-liter V6 rated at 311 hp and 280 lb-ft.
This would not be the primary time the Supra’s engine has been ported to the IS. Lexus experts will keep in mind that two years after the introduction of the unique IS in 1998, Lexus put the Supra’s 2JZ three.Zero-liter straight-six engine within the IS 300 — with out the turbochargers, thanks.
However Greatest Automotive’s prediction would have zero relation to historical past. These had been each Toyota engines again in 2000, and even ignoring the facility differential, the IS did not compete with the Supra. Placing BMW’s three.Zero-liter within the Z4 and the Supra works as a result of they’re the identical automobile. And once more, even ignoring the facility differential, the extra highly effective Z4 does not compete with the Supra.
Greatest Automotive’s state of affairs has BMW promoting one in all its finest engines to be used in a direct competitor to the three Sequence. Lexus would want to design an engine bay lengthy sufficient to swallow an inline-six, not a bread-and-butter engine for the model, but nonetheless be wise for 3 extra compact powerplants. Then, assuming BMW and Toyota made the identical deal as with the Z4 and Supra, the Lexus can be down by a wholesome double-digit horsepower margin on its German foe. The brand new Supra offers up 47 hp to the roadster. The place’s the upside?
It is stated the trim sedan will keep about the identical dimension, on a wheelbase roughly 4 centimeters longer, however lose a considerable chunk of weight. With different rumors that the design of the fourth-gen IS was frozen final 12 months, and that Job #1 of the brand new IS will occur in July 2020, solutions cannot be far-off.