The article isn't saying BMW car dealership but ...Stephen James... a car dealership based in South-East England
Once again, an exaggerated title, it's not the BMW company as a whole but just "an authorized #BMW car dealership based in London and Kent with 4 dealerships." Whenever it mentions a big company doesn't mean all of the branches worldwide accept bitcoin payment as well. However, there is more than one car dealership willing to accept bitcoin payment and we've seen Peter Saddington has bought a Lamborghini using bitcoin. the point is; you can use bitcoin to purchase almost everything and more acceptance is coming towards crypto-world.