• A BMW M3-Powered Toyota Supra GRMN Is in the Works, But There’s a Catch

If you want one, you better figure out how to be one of just 200 people that will be lucky enough to get one

With the 2020 Toyota Supra being based so heavily on the BMW Z4, you can imagine that it had a very strong offering of aftermarket options by the time it launched. After all, just about anything that will mechanically improve the Z4 will improve the Supra too, right? Well, imagine for a moment, if you will, an A90 Toyota Supra with the S58 engine that’s found in the X3 and X4 M and the upcoming next-gen M3 and M4. That would make the Toyota Supra one powerful beast and force to be reckoned with. The best part? A new report straight out of Japan says it’s going to happen. That special Supra will be known as the Supra GRMN, and it’s going to be outlandishly rare.

The Toyota Supra GRMN – A Unicorn Among Unicorns

A BMW M3-Powered Toyota Supra GRMN Is in the Works, But There's a Catch Exterior
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One could argue that adding more BMW bits to a car that’s been criticized for being to a little too BMW to begin with is a good idea, but when you start talking about limited production and 500+ horsepower, you might think a little differently. That’s exactly what Best Car Web reports the Supra GRMN to be capable of. Well, 503 horsepower, to be exact. That’s some 40 horsepower more than that current BMW X3 M and X4 M offer, and they have the same S58 engine that will allegedly pump life into the Supra GRMN. In its current application the engine also produces 442 pound-feet of torque, meaning that this limited-run Supra will be a lot more powerful than the best model on sale today.

A BMW M3-Powered Toyota Supra GRMN Is in the Works, But There's a Catch Exterior
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In comparison, the 2021 Toyota Supra has just 382 horsepower and 368 pound-feet of torque.

So, the Supra GMRN will deliver an extra 121 horsepower and at least 74 extra pound-feet of torque.

The current Supra’s sprint time of 3.9 seconds to 60 mph could be slashed down to as little as 3.5 seconds or even better if Toyota does its job right. There’s a kicker to this news, though: BMW fanboys won’t be able to get an equivalent in Z4 form.

A BMW M3-Powered Toyota Supra GRMN Is in the Works, But There's a Catch Exterior
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That’s right, the limited-run Supra GRMN isn’t getting the S58 by default because the Z4 will be offered with the same.

There are absolutely no plans for BMW’s M division to create a Z4 M, so this rare 500+ horsepower Supra will truly be one of a kind among sister cars.

How rare will it be? Well, the current report indicates that Toyota plans to build just 200 examples of the Supra GRMN. There’s no word as to what markets it will be available in or what the market split will be, but it’s safe to say that it will be significantly more expensive than the range-topping 3.0 Premium Supra that starts out at $54,490. If we had to guess, the GRMN will go for at least $80,000 if not more. When you consider the downright rarity of it, there’s potential for pricing to reach $100,000 between dealer markup or, maybe, a manufacturer bidding process.

BMW’s Seven-Speed Dual Clutch Transmission in the Supra?

A BMW M3-Powered Toyota Supra GRMN Is in the Works, But There's a Catch Exterior
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You’re probably aware that BMW has been very reluctant to give Toyota access to its seven-speed DCT, despite the fact that the company has been gradually abandoning it for some time now. Regardless, this latest report says that Bimmer’s seven-speed DCT will be handling shifting duties in the Supra GRMN. It’s not a six-speed manual like you’d probably want, but that means the Supra GRMN will be even quicker. And, since that transmission isn’t all that good for AWD (this is why most cars with the S58 feature BMW’s eight-speed automatic), chances are the GRMN will also retain its RWD status.

A BMW M3-Powered Toyota Supra GRMN Is in the Works, But There's a Catch Exterior
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Needless to say this is an interesting recipe, and price aside, it sounds like something we’d like to see. But, is the report legit? Well, we should find out in the coming years. It’s the Supra GRMN isn’t due until 2023, which puts it on the market just 2 years before production of the A90 ends. That, by the way, will be the end of an era as BMW isn’t looking to make a next-gen Z4 so Toyota will have to find a new partner or do its own thing if there will be a next-gen Toyota Supra. With that in mind, the Supra GRMN could end up being one hell of a farewell model.

Source: Best Car Web

Robert Moore
Robert Moore
Editor-in-Chief and Automotive Expert - robert@topspeed.com
Robert has been an auto enthusiast his entire life. He started working cars at a young age, learning the basics from his father in the home garage on the weekends. As time went on, Robert became more and more interested in cars and convinced his father to teach him how to drive when he was just 13 years old. Robert continued working on cars in his free time and learned as much as he could about engines, transmissions, and car electrical systems, something that only fed his curiosity more and eventually led him to earn a bachelors degree in automotive technology with a primary focus on engine performance and transmission rebuilding.  Read full bio
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