No, BMW, petrol-engined cars don't 'give back to the environment'

And it doesn't matter if you call the engine a 'range extender' or not

BMW claims that its electric i3 car has "zero emissions" and is a "really clean car [that] helps to give back to the environment". Ad regulators have ordered it never to say that again - pointing to the Beemer's petrol-fuelled auxiliary engine."