Since the 1980s what has happened to US share of domestic car sales?

Since the 1980s, the US share of domestic car sales has significantly declined. While precise figures fluctuate year to year, the trend is undeniable. US automakers held a dominant position in the 1970s and early 1980s, but faced increasing competition from Japanese and other foreign manufacturers who gained market share through higher quality, fuel efficiency, and innovative designs. This resulted in a substantial drop in the percentage of US-made cars sold in the US market. While there have been periods of slight recovery, the overall trend shows a persistent and considerable reduction in the US's domestic market share.