It's a six-cylinder engine, but which one exactly?
As quick as the range-topping Toyota GR Supra is, it's a coupe that always felt like it could handle more power. That hope was buoyed by the recent rumor that a Supra GRMN was on the way with a 500-plus-horsepower turbocharged six-cylinder engine under the hood. The rumored S58 unit is the same engine that does duty in the recently unveiled, all-new BMW M3.
A new YouTube video from statesidesupercars has been getting a lot of attention as it shows a Supra being tested at the Nurburgring, but there is some debate as to whether it is sporting a retuned version of the existing B58 or the new S58.
Whichever engine is being tested here, it sure sounds good, although it admittedly doesn't sound all that different from the familiar B58 six-pot. In the 2021 Supra, this power plant produces 382 hp and 368 lb-ft of torque, allowing Toyota's hot coupe to reach 60 mph in under four seconds.
That's quick, but an S58-equipped Supra would be an altogether different beast as this engine generates up to 503 hp and 479 lb-ft. With those outputs, the Supra should be capable of completing the benchmark sprint in a time much closer to three seconds.
The question is: would BMW be willing to donate a bona fide M engine to the Supra? If so, it's a decision that would likely displease BMW fans, as some of the exclusivity afforded to the M3 and M4 would be lost, especially considering that a Supra with the same engine would likely come in at a lower price.
Already, the Supra has proved to be nearly as quick as the more powerful BMW M2, so an S58-engined version could theoretically outrun an M4. At this point, Toyota hasn't confirmed anything, but everything points towards a more powerful Supra being on the way, and that can only be a good thing.
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