5. The dip to the lowest level in five months came as some companies surveyed for the gauge noted that stricter environmental policies – intended to curb the toxic haze that descends upon much of China each winter – had restricted expansion.
6. The region boasts hundreds of miles of beaches and lakeshore, some of the country's oldest forests and waterfalls. Best of all, it offers reasonable travel costs and sees far fewer travelers than big cities.
The inclusion of three turbodiesel engines this year could be considered controversial, especially as diesels remain far less popular in the U.S. than in Europe, where they tend to dominate the discussion. This is the first year in which more than two diesel-powered mills made the top 10 list and ironically two of them come from domestic automakers, including the only current full-size domestic half-ton pickup to offer one, the Ram 1500.