BMW's electric cars are confined to its new I sub-brand for the moment, but a hybrid BMW 5 series and a 3 series will come to market this year and next.
宝马的电动汽车目前仅限用于它的新子品牌“I”,但宝马5系和3系的混合动力车会在今年或明年上市。
3
Using a tag-on can be an inexpensive way to launch a subbrand, but it can also be risky.