 FedEx, along with Eaton Corp. in the US and Iveco in Europe, has begun deploying a small fleet of Hybrid diesel electric delivery trucks.As of October 2007, Fedex operates more than 100 diesel electric hybrids in North America, Asia and Europe.Hyundai introduced in 2009 the Hyundai Elantra LPI Hybrid, which is the first mass production hybrid electric vehicle to run on liquefied petroleum gas (LPG).