I have a similar puzzle regarding:
the BMW i3 Range-Extended REx exhaust pipe, where is it?
BMW i3 is an electric car, so the exterior does not seem to show any exhaust pipe. However, it has also 647-cc two-cylinder gas-powered REX onboard generator. So there should be an exhaust pipe somewhere.
If the location of pipes evolves from years to years, I am interested in knowing the old version like BMW i3 2014. Thank you!