Bars that always turn out as a hypocrytical pretext to end the discussion prematurely. I say hypocritical because once there eventually is someone who dares to jump it and offer the same criticism the bar gets moved.
No, I don't need to be a saint, a monk and carbon negative to say that in a world moving towards human extinction a jumping supercar should not exist.
Aren't you you the one setting up imaginary moral bars for what kinds of features a car should or should not have? And for what people should or shouldn't want in a car?
Aren't you the one believing "we're only allowed to combat human extinction" if we jump across your imaginary moral bars?
I say that I personally think that people developing/selling/buying such a product are immoral (to me) and doing a disservice to humanity (in my eyes). Do with that what you will.
Now I am not a fan of banning things, but if you are at a mountain hut with a weak solar battery and one guy keeps plugging in a toaster because he doesn't want to chop wood, I am all for banning the toaster.
The world is not a place of unlimited resources and those who pretend it is while they make others pay the price are (to me) the lowest form of life and undeserving of any form of respect.