Biomaterials, agromaterials, vs traditional plastics

Would be nice to expand this thread a bit.
The company i am working for tires to prevent the use of normal plastics as long as it makes sense.
We are working on offroad e-mobility and are using mostly metals and even wood, but I think it would be very interesting to see where those bioplastics would be a benefit.

I stumbled upon this company http://www.upm.com/ through their appearence at the auto show in geneva with this cool car:
http://www.upm.com/upmcc-en/Pages/default.aspx
They are using different materials. Not 100% bioplastics but cellulose and cellulose reinforced plastics and also biofuel and such. Recycabel or already recycled. Very nice concept that shows what is possible to an extent.

What other projects like this do you guys know, what other bioplastcs/materials are ready for implementation in this area?

Cheers,
Jan