This was the subject of a thread ages ago. The stickers can be removed with the aid of a solvent such as tar remover, a hairdryer and sharp blade. Minw we're off the car within hours of getting home. Good to see Maxda have got rid of them but still fail to see why you need any sort of indication on the car that it's a EV. I managed for years without a petrol sticker on my previous cars.
Well, you don't fail to see it. Because you mention it yourself: everything that's deemed ordinary is not badged. But can you tell me what manufacturers do with more powerful petrol cars? That's right... they badge them: GT, GTI, M, GR, AMG, you name it.
And actually, even the more ordinary cars ar badged:
Does it have any use to badge this as "Skyactiv G" and for some "Turbo"? No, apart from it being a way from the manufacturer to promote their technologies. Having a turbo used to be something noteworthy in the 90s, then came the GTI and what have you, then hybrids and PHEVs and now EVs are promoted this way. You can't really blame them, for Mazda it's their first foray into the EV market, so you bet they want to let everyone know. And let's be honest: by the looks of it, it looks the least EV-like of any EV I've ever seen apart from maybe the very nondescript Kia e-Niro.
I'm not saying I'm a fan myself, I don't mind tbh. But I do see why they're doing this.