乘联分会：5月新能源车国内零售渗透率52.9%。

Group 1 - The core viewpoint of the article highlights that the domestic retail penetration rate of new energy vehicles reached 52.9% in May [1] Group 2 - The data indicates a significant growth in the adoption of new energy vehicles within the domestic market, reflecting a strong trend towards electrification in the automotive industry [1]