Total US auto sales in May stood at 1,51 million vehicle units, which is about 0.5 lower than the car sales in US last year for the same month. Still, the May US auto sales figures were much stronger than its ~1.42 million vehicle units sold in April 2017. In May 2017, the US small car sales fell 9.3% YoY (year-over-year), while US truck sales rose 6.0% YoY. Weak small car sales were the primary reason for the overall lower US auto sales in May. US auto sales have dropped 2.0% YoY in the first five months of 2017 to ~6.98 million vehicle units. The US is the largest auto market in North America and the second-largest market in the world after China. Mainstream automakers such as Ford Motor, General Motors, Fiat Chrysler Automobiles, and Toyota Motor are highly dependent on the US market, as their largest chunk of revenues comes from the US market.