In a lot of places in the world you can return new cars. I would return one that did that. Manufacturers won't get the hints until they start seeing returns wreck their bottom line.
They could try to cheat! That's actually what Volvo did in the Dieselgate. The EU regulation mandated the impossible duo of lower NOx emission and higher fuel efficiency. Diesel engines get higher efficiency by increasing compression ratio, which also increases NOx production.
possibilities:
(1) they get lots of angry customers and bad press, and are tired of being made to look bad because of gov req's
(2) it costs them more to manufacture all the fancy nanny tech, so their bottom line would be positively impacted by rolling back the requirement for it
I don't know the law in your country but most forms of credit have a 'cooling off' period where you can return the money or asset and reset the credit agreement within a certain time but I'm not sure if doing it a lot in a small period of time would flag to a future creditor though.