Interviews with Chief Engineer Tetsuya Tada

[Modal170]

Unless there is some unknown trim level that has not been announced or a trim spec to come future, which is possible. There has been no signs of some toyota developed motor in the works yet. So yes there could be some unique motor out there but it won't be at release based off what has been gathered. BMW already spoke on the motors on the Z4 and Toyota already said the underpinnings are BMW.

The underpinnings are BMW, but doesn't mean it's a straight B58 thrown into the car. I don't think it's a 100 percent BMW motor like the FA20 was. We won't know until about two years down the line but something to make note of.

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[ostatem3]

The underpinnings are BMW, but doesn't mean it's a straight B58 thrown into the car. I don't think it's a 100 percent BMW motor like the FA20 was. We won't know until about two years down the line but something to make note of.

I love the optimism, but if that wasn't the case we would have definitely known by now and if the motors weren't shared testing would have been separate. The only possibility that what your sayings holds true is if Toyota individually develops there own trim which most likely would not launch at release. As for current launch cars and how much of them have been seen tested at BMW they are identical except for exterior design and coupe vs convertible. It just makes logical sense.

 

[Supraman]

I love the optimism, but if that wasn't the case we would have definitely known by now and if the motors weren't shared testing would have been separate. The only possibility that what your sayings holds true is if Toyota individually develops there own trim which most likely would not launch at release. As for current launch cars and how much of them have been seen tested at BMW they are identical except for exterior design and coupe vs convertible. It just makes logical sense.

That could be the case but then again they have models in Japan and in the US they are also testing which could have the Toyota developed engine. A majority of the pics and videos seen are the mules BMW is running around with. Who is to say those aren't running around with the actual B58/S58 the early proto types were running around with? Maybe all they are having BMW test on those cars is the suspension, transmission & some mechanical components to capture data while running around with the Z4 and entertaining all of us while the engine they developed with the BMW underpinnings is exclusively only on the mules Toyota is running around with?

Just a wild theory of course...

 

[Nurburgring]

The Supra should be lighter, with higher chassis rigidity, more aggresive suspension setup, and probably a bit more power. It’s unlikely we will see much hardware differences as Tada says in the interviews:

“From our side Toyota wanted to make a pure sports car, and BMW has a slightly different direction. Engine calibration is quite different between the two cars. Even if the hardware is the same in some elements, the calibration is completely different – the driving experience will be very different to the Z4”

"It's different to the Z4, they are two different cars. We didn't start by finding common parts. We worked on our own ideas to see what cars we wanted to create, then we shared ideas to identify where we can share common parts."

 

[Prius_F_Sport]

Maybe.
I would say the Supra is wayy more expected than the Bimmer, so the basic measurements would be made on the Supra, and the Z5, which is much less anticipated, does the main testing.
Though I do expect Toyota to do some more benchmarking themselves at a later time, or on a private racetrack.

 

[ostatem3]

Maybe.
I would say the Supra is wayy more expected than the Bimmer, so the basic measurements would be made on the Supra, and the Z5, which is much less anticipated, does the main testing.
Though I do expect Toyota to do some more benchmarking themselves at a later time, or on a private racetrack.

I'm not sure I understand what you're saying.

 

[ostatem3]

That could be the case but then again they have models in Japan and in the US they are also testing which could have the Toyota developed engine. A majority of the pics and videos seen are the mules BMW is running around with. Who is to say those aren't running around with the actual B58/S58 the early proto types were running around with? Maybe all they are having BMW test on those cars is the suspension, transmission & some mechanical components to capture data while running around with the Z4 and entertaining all of us while the engine they developed with the BMW underpinnings is exclusively only on the mules Toyota is running around with?

Just a wild theory of course...

I'm all in for wild theories and trust me I'd like it to be as much the case as the other but as soon as this venture was kicked off faith in that was slim.

You don't build a great Supra teaming up with another company. So we're going to get a Supra wrapped Z4. They're racecar was a shell and everything that's been stated is just gray area to keep people's imaginations running rampant. But, like I said I hope GR can deliver on at least one of the trims during its lifecylce

 

[Supraman]

While I do agree that they should've built this all themselves, I'm still skeptical on what the Toyota version will have under the hood. From the interviews with both BMW and Toyota it doesn't sound like these will share the same exact engines + specs comparing it to the BRZ + 86 relationship where both cars have the same exact engine. It might not be anything too different or it just might be.

 

[jdcalve]

While I do agree that they should've built this all themselves, I'm still skeptical on what the Toyota version will have under the hood. From the interviews with both BMW and Toyota it doesn't sound like these will share the same exact engines + specs comparing it to the BRZ + 86 relationship where both cars have the same exact engine. It might not be anything too different or it just might be.

Same engine, but maybe Supra has something along the lines of the MPPSK kit standard bumping hp/tq a bit?

 

[Modal170]

While I do agree that they should've built this all themselves, I'm still skeptical on what the Toyota version will have under the hood. From the interviews with both BMW and Toyota it doesn't sound like these will share the same exact engines + specs comparing it to the BRZ + 86 relationship where both cars have the same exact engine. It might not be anything too different or it just might be.

Paging A70TTR to come in and say something to at least guide the non-believers.

 

[A70TTR]

I had a response typed out, but I'm tired of repeating the same stuff like a broken record...

The engine *should be the same* between the two chassis, so aside from fuel/timing/boost the hardware should be the same. It is also likely refinements were made by Toyota, but these would be present on both cars as they are still siblings and the motor is still BMW regardless.

So, engine wise things are pretty similar to the FRS/BRZ situation with the caveat going to ECU tuning/power level changing based on trim level.

I feel the motor may be a new architecture or at the very least a new variant of the B/S58 based on changes, but I have no further info other than assumptions.

 

[Modal170]

I had a response typed out, but I'm tired of repeating the same stuff like a broken record...

The engine *should be the same* between the two chassis, so aside from fuel/timing/boost the hardware should be the same. It is also likely refinements were made by Toyota, but these would be present on both cars as they are still siblings and the motor is still BMW regardless.

So, engine wise things are pretty similar to the FRS/BRZ situation with the caveat going to ECU tuning/power level changing based on trim level.

I feel the motor may be a new architecture or at the very least a new variant of the B/S58 based on changes, but I have no further info other than assumptions.

Why can't we just pin your posts for FAQS to limit the clutter and new people asking the same questions and when we try and tell them via paraphrasing, we get shit on or be told lies?

 

[Supraman]

The engine *should be the same* between the two chassis

Can't really say I'm 100% shocked but still

 

[A70TTR]

Why can't we just pin your posts for FAQS to limit the clutter and new people asking the same questions and when we try and tell them via paraphrasing, we get shit on or be told lies?

egh, time consuming, info changes, and despite being an "insider" I'm not here in an official capacity so pinning posts doesn't make the most sense IMO.

 

[greaseman]

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