The Chinese yuan is expected to become a vehicle currency in the near future as China's position in world trade continues to grow.

A vehicle currency is a contract that requires the exchange of an agreed-upon amount of a currency on an agreed-upon date at a specific exchange rate.

The Euro, Yen and the U.S. dollar are vehicle currencies because of their stability and resistance to extreme inflation. 

The U.S. dollar, Canadian dollar, Japanese yen, and British pound are all examples of vehicle currencies.