Well, more like v8 as I've iterated the design a lot since the first one.
As a reminder this is where I started:

I then did several interations of this but found that it would roll forwards with a full bottle under heavy braking. Velcro didn't work on the tight pile of the interior carpet so a complete rethink was required.
This time I came off the net holder bolts as a way of securing it down. This however meant that I needed to break the design up to be able to print it on my P1S.
I split into a pair of lowers and an upper. There are caps for the bolt holes from the net hold downs.


You'll need M4 heat-set inserts and M4x16mm cap heads to assemble.
I then removed the net holder plastics and set about bolting it up.





It's going no where now!

It's available for anyone that would like one to print yourself. Cost me around £14 in PETG-CF filament, 18hrs print time in total and £2.50 in fasteners.
https://makerworld.com/en/models/697508#profileId-626547
https://www.printables.com/model/915039-bmw-z4-e89-double-bottle-holder-for-yeti-12-18oz-b
As a reminder this is where I started:

I then did several interations of this but found that it would roll forwards with a full bottle under heavy braking. Velcro didn't work on the tight pile of the interior carpet so a complete rethink was required.
This time I came off the net holder bolts as a way of securing it down. This however meant that I needed to break the design up to be able to print it on my P1S.
I split into a pair of lowers and an upper. There are caps for the bolt holes from the net hold downs.


You'll need M4 heat-set inserts and M4x16mm cap heads to assemble.
I then removed the net holder plastics and set about bolting it up.





It's going no where now!

It's available for anyone that would like one to print yourself. Cost me around £14 in PETG-CF filament, 18hrs print time in total and £2.50 in fasteners.
https://makerworld.com/en/models/697508#profileId-626547
https://www.printables.com/model/915039-bmw-z4-e89-double-bottle-holder-for-yeti-12-18oz-b