When I read that I thought it was about upgrading individual cars and I thought that it would be great if Nissan offered a similar option for existing Leaf owners. But then I read it further and I realised that they don't mean upgrade the car... they mean the owner trades in the 200km car and buy a new 300km car.
Not the kind of "upgrade" I was thinking of. More like a replacement Good none the less.
He was a real car salesman - having indicated the theoretical possibility, he then suggest that what you really would want is a new car with improved performance. Since he's got you hooked with a battery contract - he is teasing Renault owners with the possibility to spend more - lots more!