Most premium brand cars are leased, not bought. In this scenario it makes perfect sense to tax an increase in performance as it will increase the wear on the car.
This is another copy paste article on the subject that offers no details just to spark outrage and clicks. If the tax also applies to bought and payed units feel free to rage. But until some real journalism clears that up...
This applies to owners and is an attempt to redefine 'ownership' of vehicles such that 'ownership' becomes a debt-like instrument entailing a stream of cash flows to Mercedes after you have 'purchased' your vehicle.
It would also apply to leased vehicles but to your point is not nearly as offensive there given you already have car as a service as the underlying model.
This is another copy paste article on the subject that offers no details just to spark outrage and clicks. If the tax also applies to bought and payed units feel free to rage. But until some real journalism clears that up...