bmw 4dDBA-4D20・4シリーズ(BMW)のガイドDBA-4D204シリーズ(BMW)のスペックやグレードなどのをごとThe iX is the first BMW electric car to be equipped with the tweeter inherited from the 800 D4 range. The BMW iX is the first fully electric car to be equipped with the Diamond dome tweeter of the prestious English hi-fi brand Bowers & Wilkins.