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Yeah, that makes sense... My inner optimist hopes for a new engine, only in Z4 and Supra, new engine code etc, but my inner realist thinks it will just be the B58B30TU (Technical upgrade)

and we're fairly confident item 13 is unique to Z4/A90.... fascinating. thanks for the info, this tech stuff is fantastic. certainly looks like a lot of room on the hot side for a six slanted on it's side (one airboxes etc are removed :P)

Yeah possibly. Typical the bmw mani are cast in the middle two runners and the front and rear are pressed/tube. The front two are cast on this one, hence my assumption. But absolutely is a guesstimate .

Here's a high-res version of the B58 image. You can clearly see the front profile (and exhaust side "overhang") is different to the engine in the Z4/Supra. Similarly, a quick google suggests it is not like any head from the current BMW range, and all manifolds are a combination of pressed and...

Definitely seems like a new head casting compared to B58. Does anyone know if such big changes are normal in a "TU"? edit: for clarification - the entire head is a different casting, going by the hot side manifold interface. Are BMW's Technical updates normally smaller changes, or would an...

Seems consistent with what we've known so far. Toyota have their design spec and requirements for the vehicle. Rather than complete each one in house, they have contracted bmw to design and development some aspects or phases of each outcome. Seems like both cars have truly benefited which is...

I really like how the engineer of the project has been placed in such a high position to the public. Usually it's a project manager, or manager, not a technical/engineering person. No PR middlemen, the chief engineer is front and centre. That's unusual, and that's cool.

I'm going to read into this... especially given your previous comments re: kW, kg and NDA.

"twin power turbo" = twin scroll single turbo in bmw language :)

The rear muffler position pleases me. An aftermarket centre exit bumper on the A90? Sign me up

That's some serious tuning differences for a 1000rpm band of head flow... I'm assuming the turbine/exhaust would be the same too? Normally the mechanical systems wouldn't support an extra 1000rpm jump in redline without choking, so the bmw is seriously detuned compared to the supra, or there are...

Bmw redline is 6500 We're assuming the redline of the A90 is >7400 (ref goodwood promo vid) Is there a clue in here? So the Z4 may have a cgi block?

I hope there's provision for a front mount air to air. It's kinda the supra thing... W2A is for GT4 celica :)

Yeah, even down to the clearance for the strut bracing on the airbox. I wonder if the goodwood car has Z4 items because it's still a prototype, or whether they'll just share in production . (simple items like airbox etc) The front cowling looks the same too. Given the bmw is single turbo, I...

Wtf

That's a nice looking car, thanks guff! The doorskins look nice and sporty - hopefully the supras look even better. The seats look good too, but I really hope the supra has a different set of pews. We need to put the engine bay pics side by side and do a spot the difference

''STRAYA

Started my samurai inspired livery...

Have we seen that wheel design before?

as far as i'm aware, the suppliers of a lot of BMW interior components are also suppliers of Lexus components (so assuming Toyota by extension?) so I wouldn't be surprised if a lot of the A90 componentry is rather Lexus-ish... despite the BMW collab. Just a theory :)