Japanese automakers faced lingering political tensions between Japan and China as the Beijing auto show opened to the media over the weekend.

The motor show, the largest in the world's biggest car market, has attracted more than 2,000 companies from 14 countries and regions. They are exhibiting 1,134 vehicles, with a record 118 new models making their global debut, according to organizers.

The Beijing International Automotive Exhibition, which opened Sunday and runs through April 29, comes after China became the first country to see new vehicle sales exceed 20 million units a year in 2013.