Both ❤ From a professional point of view , BMW tries to make so much from something so small although they can since history tells us that Mercedes bought BMW cars for examination and acquiring their technology . Mercedes is just changing the game and concentrating on bigger engines now and worse fuel consumption, whereas BMW is focusing on the driving pleasures and track racing . So a professional opinion is that BMW is a better killing machine . From a fan opinion , I like Mercedes more . Prefer luxury and class .
Those two brands arent in the same class that be one sided all day koenigsegg would beat aston Martin without even trying just their name and what they have achieved is enough in my opinion