极星汽车：第二季度销量同比增长38%，达到18,049辆。

Group 1 - The core point of the article is that Polestar Automotive achieved a 38% year-on-year increase in sales, reaching 18,049 vehicles in the second quarter [1] Group 2 - The sales growth indicates a strong demand for Polestar's electric vehicles in the current market [1] - The increase in sales reflects the company's successful strategies in expanding its market presence and product offerings [1] - The performance in the second quarter may position Polestar favorably for future growth and investor interest [1]