AFAIK there's no equivalent to a lemon law in CH.  The basis for returning the car is that it has spent 40% of the time since delivery at various dealerships trying to solve engine related issues (in the meantime, batteries, the full engine, the exhaust system, etc... have all been replaced, 1000 of km's have been done in test drives, ...)


--

1988 Peugeot 205 Rallye / 2004 Porsche 996 GT3 RS  / 2018 Mercedes-AMG E63 S / 2020 Ferrari 812SF